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Anacroneuria morsei   sp. nov.  Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 12 12
Bromus carinatus var. marginatus     Saarela, Jeffery M., Peterson, Paul M. & Valdés-Reyna, Jesus, 2014, A taxonomic revision of Bromus (Poaceae: Pooideae: Bromeae) in México and Central America, Phytotaxa 185 (1), pp. 1-147 : 47-61 47-61
Miconia radicans     Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 114-117 114-117
Miconia biolleyana   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 65-67 65-67
Miconia albertobrenesii   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 41-46 41-46
Ummidia varablanca   sp. nov.  Godwin, Rebecca L. & Bond, Jason E., 2021, Taxonomic revision of the New World members of the trapdoor spider genus Ummidia Thorell (Araneae, Mygalomorphae, Halonoproctidae), ZooKeys 1027, pp. 1-165 : 1 1
Espeson dybasi   sp. nov.  Irmler, U., 2012, The Neotropical species of the genera Pseudespeson L, 1994 and Espeson S, 1882 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 62 (2), pp. 331-360 : 337-338 337-338
Cryptothecia striata     Ertz, Damien, Flakus, Adam, Oset, Magdalena, Sipman, Harrie J. M. & Kukwa, Martin, 2015, A first assessment of lichenized Arthoniales in Bolivia with descriptions of two new species, Phytotaxa 217 (1), pp. 1-25 : 10-11 10-11
Embates galbinus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Cheiloneurus myndus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 251-253 251-253
Galeopsomyia blancaensis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 75-77 75-77
Embates polymorphus subsp. altrimsecus   subsp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Floromadane atrorubens   sp. nov.  Prena, Jens, 2009, Floromadane, a new genus of baridine weevils associated with Rubiaceae in Costa Rica and Panama (Coleoptera: Curculionidae: Baridinae), Beiträge Zur Entomologie = Contributions to Entomology 59 (1), pp. 239-246 : 244 244
Ammonoencyrtus xanthos   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 529-531 529-531
Dalek pleione   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 646-648 646-648
Galeopsomyia aliosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 65-67 65-67
Galeopsomyia myrsineae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 402-403 402-403
Galeopsomyia ingae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 336-337 336-337
Galeopsomyia alas   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 64-65 64-65
Coccidencyrtus quebrus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 112-113 112-113
Guapinannus falcis   sp. nov.  Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, Zootaxa 4958 (1), pp. 261-286 : 272 272
Coccidencyrtus tristeryx   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 115-116 115-116
Caldencyrtus antander     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 633-634 633-634
Trechnites merops     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 569-570 569-570
Dalek cyclos   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 656-658 656-658
Mendisa gaia   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 667-668 667-668
Phyllocnistis maxberryi   sp. nov.  Kawahara, Akito Y., Nishida, Kenji & Davis, Donald R., 2009, Systematics, host plants, and life histories of three new Phyllocnistis species from the central highlands of Costa Rica (Lepidoptera, Gracillariidae, Phyllocnistinae), ZooKeys 27 (27), pp. 7-30 : 17-20 17-20
Galeopsomyia globosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 318-320 318-320
Temnothorax salvini     Prebus, Matthew M., 2021, Taxonomic revision of the Temnothorax salvini clade (Hymenoptera: Formicidae), with a key to the clades of New World Temnothorax, PeerJ (e 11514) 9, pp. 1-462 : 411-417 411-417
Galeopsomyia miliaris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 391-392 391-392
Orixia sirus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 148-150 148-150
Myoplatypus prenexus     Kirkendall, Lawrence R. & Atkinson, Thomas H., 2023, The rare genus Myoplatypus (Coleoptera: Curculionidae: Platypodinae): three new species, new reports, and first records for South America, Zootaxa 5351 (3), pp. 301-321 : 314-315 314-315
Galeopsomyia gala   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 107-108 107-108
Polaszekius nemesis   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 533-535 533-535
Galeopsomyia amyra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 227-229 227-229
Cheiloneurus extillus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 270-271 270-271
Pheidole     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 187-190 187-190
Galeopsomyia maculifer   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 368-369 368-369
Embates callifer   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Galeopsomyia nebulosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 408-409 408-409
Galeopsomyia cosidis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 283-285 283-285
Galeopsomyia schefflerae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 456-457 456-457
Embates peperomiae   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Galeopsomyia picuda   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 444-445 444-445
Cercobelus adrastea   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 613-614 613-614
Esphora rhea   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 677-679 677-679
Sybaguasu cupreum     Groll, Elisa Von, 2017, Catalogue of Coleoptera type specimens housed in the collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4318 (3), pp. 439-473 : 454 454
Galeopsomyia clavata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 274-275 274-275
Leichosila wagneri   sp. nov.  Schmidt, Christian, 2009, A new genus and two new species of arctiine tiger moth (Noctuidae, Arctiinae, Arctiini) from Costa Rica, ZooKeys 9 (9), pp. 89-96 : 95 95
Embates uniformis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Galeopsomyia doradis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 94-95 94-95
Galeopsomyia lapra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 126-127 126-127
Cercobelus phanes   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 620-621 620-621
Stenus trifidus     Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 48 (2), pp. 1551-1634 : 1564-1565 1564-1565
Argia elongata   sp. nov.  Garrison, Rosser W. & Ellenrieder, Natalia Von, 2017, New species of the damselfly genus Argia from Mexico, Central America and Ecuador with an emphasis on Costa Rica (Insecta: Odonata: Coenagrionidae), Zootaxa 4235 (1), pp. 1-93 : 14-21 14-21
Galeopsomyia marbis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 376-377 376-377
Cercobelus epimetheus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 611-613 611-613
Cupania moralesii   sp. nov.  Jiménez, José Esteban, Juárez, Pedro & Chaves-Fallas, José Miguel, 2016, Cupania moralesii (Sapindaceae), a new endemic tree species from the premontane forest of Costa Rica, Phytotaxa 275 (1), pp. 69-74 : 71-73 71-73
Symplocos striata     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Temnothorax nebliselva   sp. nov .  Prebus, Matthew M., 2021, Taxonomic revision of the Temnothorax salvini clade (Hymenoptera: Formicidae), with a key to the clades of New World Temnothorax, PeerJ (e 11514) 9, pp. 1-462 : 159-165 159-165
Myrmelachista flavocotea   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 17-19 17-19
Myrmelachista nigrocotea   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 40-42 40-42
Coniceromyia numerosa   sp. nov.  Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 29-30 29-30
Psyllaephagus xepo   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 596-598 596-598
Osbornellus aielloae   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 19-22 19-22
Coniceromyia globosa     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 36-37 36-37
Belonuchus godmani     Márquez, Juan & Asiain, Julieta, 2022, Taxonomy of the Mexican species of Belonuchus Nordmann (Coleoptera: Staphylinidae), Zootaxa 5152 (1), pp. 1-129 : 91-92 91-92
Phyllocnistis drimiphaga   sp. nov.  Kawahara, Akito Y., Nishida, Kenji & Davis, Donald R., 2009, Systematics, host plants, and life histories of three new Phyllocnistis species from the central highlands of Costa Rica (Lepidoptera, Gracillariidae, Phyllocnistinae), ZooKeys 27 (27), pp. 7-30 : 12-17 12-17
Phyllocnistis drimiphaga     Prins, Jurate De, Brito, Rosângela & Moreira, Gilson Rudinei Pires, 2016, An annotated taxonomic checklist of the Neotropical Gracillariidae (Lepidoptera) with links to the information on host plants and parasitoids, Zootaxa 4158 (1), pp. 1-51 : 36 36
Ooderella speculifrons   sp. nov.  Gibson, Gary A. P., 2017, Revision of world Ooderella Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae), with description of the first males for the genus, Zootaxa 4289 (1), pp. 1-74 : 45-48 45-48
Netomocera virgata   sp. nov.  Mitroiu, Mircea-Dan, 2019, Revision of Netomocera Bouček (Hymenoptera: Chalcidoidea: Pteromalidae), excluding the Oriental species, European Journal of Taxonomy 568, pp. 1-87 : 81-85 81-85
Ooderella flavida   sp. nov.  Gibson, Gary A. P., 2017, Revision of world Ooderella Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae), with description of the first males for the genus, Zootaxa 4289 (1), pp. 1-74 : 20-23 20-23
Chimaerolelaps villosa   sp. nov.  Desjardins, Christopher A., 2007, Phylogenetics and classification of the world genera of Diparinae (Hymenoptera: Pteromalidae), Zootaxa 1647 (1), pp. 1-88 : 34-35 34-35
Robustagramma longiseta   sp. nov.  Marshall, Stephen A. & Cui, Yongsheng, 2005, Systematics of Robustagramma, a new genus of New World Sphaeroceridae (Diptera), Zootaxa 1026 (1), pp. 1-122 : 23-25 23-25
Domodon sensibilis   sp. nov.  Carvalho-Filho, Fernando Da Silva, Martins, Marlúcia Bonifácio, Souza, Matheus Tavares De & Reemer, Menno, 2019, Revision of the Neotropical genus Domodon Reemer (Diptera: Syrphidae), with description of three new species, Zootaxa 4648 (3), pp. 523-536 : 531-532 531-532
Symplocos serrulata     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Myrmelachista joycei   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 25-28 25-28
Lepanthes bogariniana   sp. nov.  Pupulin, Franco, 2021, A correction to the Lepanthes guatemalensis group (Orchidaceae: Pleurothallidinae) in Costa Rica, with a new species, Phytotaxa 480 (1), pp. 69-78 : 72-74 72-74
Symplocos elliptica     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Eleusis scita     Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 291-293 291-293
Anacroneuria exquisita     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 8 8
Anacroneuria benedettoi     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 8 8
Anacroneuria planicollis     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 12-13 12-13
Eurhopalothrix     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 179-180 179-180
Diochus schuelkei   sp. nov.  Irmler, Ulrich, 2017, A review of the Neotropical genus Diochus ERICHSON, 1840 (Coleoptera: Staphylinidae: Staphylininae), Beiträge Zur Entomologie = Contributions to Entomology 67 (1), pp. 1-62 : 16-18 16-18
Homalopoda aibeus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 63-65 63-65
Anacroneuria ventana     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 14 14
Ponsoonops bilzi   sp. nov.  Bolzern, Angelo, 2014, The Neotropical goblin spiders of the new genera Ponsoonops and Bipoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3803), pp. 1-1 : 1--1 1--1
Anacroneuria magnirufa     Stark, Bill P., 2014, Records Of Mesoamerican Anacroneuria (Plecoptera: Perlidae), With Descriptions Of Four New Species, Illiesia 10 (2), pp. 6-16 : 10 10
Cheiloneurus fabius   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 281-283 281-283
Dalek jigas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 648-650 648-650
Cheiloneurus varablus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 249-251 249-251
Angebra harpalyke   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 187-189 187-189
Venanus randallgarciai   sp. n.  Fernandez-Triana, Jose L, Whitfield, James B, Smith, M. Alex, Hallwachs, Winnie & Janzen, Daniel H., 2014, First record of the genus Venanus (Hymenoptera: Braconidae: Microgastrinae) in Mesoamerica, with the description of two new species from Costa Rica, Biodiversity Data Journal 2, pp. 4167-4167 : 4167 4167
Venanus randallgarciai   sp. n.  Fernandez-Triana, Jose L, Whitfield, James B, Smith, M. Alex, Hallwachs, Winnie & Janzen, Daniel H., 2014, First record of the genus Venanus (Hymenoptera: Braconidae: Microgastrinae) in Mesoamerica, with the description of two new species from Costa Rica, Biodiversity Data Journal 2, pp. 4167-4167 : 4167 4167
Costarina poas   sp. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna, American Museum Novitates 2014 (3794), pp. 1-76 : 7-8 7-8
Cyathea divergens var. divergens     Lehnert, Marcus, 2014, Do you know Cyathea divergens (Cyatheaceae-Polypodiopsida)?, Phytotaxa 161 (1), pp. 1-42 : 10-39 10-39
Leptocera hexadike   sp. nov.  Buck, Matthias & Marshall, Stephen A., 2009, Revision of New World Leptocera Olivier (Diptera, Sphaeroceridae), Zootaxa 2039 (1), pp. 1-139 : 97-100 97-100
Leptocera sphaerotheca   sp. nov.  Buck, Matthias & Marshall, Stephen A., 2009, Revision of New World Leptocera Olivier (Diptera, Sphaeroceridae), Zootaxa 2039 (1), pp. 1-139 : 57-61 57-61
Galeopsomyia illydris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 332-334 332-334
Galeopsomyia milagra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 389-390 389-390
Galeopsomyia baldosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 243-244 243-244
Galeopsomyia fucata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 105-106 105-106
Galeopsomyia meleadis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 383-384 383-384
Galeopsomyia nigricans   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 412-413 412-413
Galeopsomyia asilis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 486-487 486-487
Stelis luz-marinae   sp. nov.  Rojas-Alvarado, Gustavo, 2023, A new species of Stelis subgen. Unciferia (Orchidaceae: Pleurothallidinae) from Costa Rica, Phytotaxa 607 (3), pp. 205-212 : 206-211 206-211
Zelus lewisi   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Zelus lewisi   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Stenus irazumontis     Puthz, V., 2014, Neue und alte neotropische Stenus-Arten (Coleoptera, Staphylinidae) 339. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 46 (2), pp. 1671-1736 : 1693 1693
Stenus fuscatus   sp. nov.  Puthz, V., 2014, Neue und alte neotropische Stenus-Arten (Coleoptera, Staphylinidae) 339. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 46 (2), pp. 1671-1736 : 1674-1675 1674-1675
Miconia alboglandulosa   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 46-49 46-49
Lachnomyrmex laticeps   new species  Feitosa, R. M. & Brandão, C. R. F., 2008, A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae), Zootaxa 1890, pp. 1-49 : 19-21 19-21
Leptocera fulva     Buck, Matthias & Marshall, Stephen A., 2009, Revision of New World Leptocera Olivier (Diptera, Sphaeroceridae), Zootaxa 2039 (1), pp. 1-139 : 104-107 104-107
Myrmelachista haberi   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 23-25 23-25
Perittonannus   gen. nov.  Weirauch, Christiane, Knyshov, Alexander & Hoey-Chamberlain, Rochelle, 2020, Four new genera of Schizopteridae (Hemiptera: Heteroptera) from theAfrotropical and Neotropical regions, Zootaxa 4768 (1), pp. 95-111 : 106-110 106-110
Anisopodus scriptipennis     Santos-Silva, Antonio & Devesa, Sergio, 2021, New species and new records in American Acanthocinini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4942 (4), pp. 569-582 : 576 576
Mesembrinella zurquiensis   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 108-109 108-109
Myrmelachista plebecula     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 43-46 43-46
Myrmelachista zeledoni     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 46-48 46-48
Ponsoonops samadam   sp. nov.  Bolzern, Angelo, 2014, The Neotropical goblin spiders of the new genera Ponsoonops and Bipoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3803), pp. 1-1 : 1--1 1--1
Mesembrinella spicata     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 55-56 55-56
Embates todillofasciatus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Temnocerus cyaneus   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 11-13 11-13
Helonoton tico   sp. nov.  Lord, Nathan P. & Ivie, Michael A., 2016, Several New Genera and Species of New World Synchitini (Coleoptera: Zopheridae: Colydiinae), The Coleopterists Bulletin 70 (4), pp. 715-753 : 715-753 715-753
Lachnomyrmex     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 191-192 191-192
Azteca instabilis     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 35-37 35-37
Phaenostoma posticatum     Gustafson, Grey T. & Short, Andrew E. Z., 2010, Redescription of the Neotropical water scavenger beetle genus Phaenostoma (Coleoptera: Hydrophilidae) with description of two new species, Acta Entomologica Musei Nationalis Pragae (suppl.) 50 (2), pp. 459-469 : 465-466 465-466
Guapinannus minutus   sp. nov.  Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, Zootaxa 4958 (1), pp. 261-286 : 273-274 273-274
Amphicnaeia rileyi   sp. nov.  Wappes, James E., Santos-Silva, Antonio & Galileo, Maria Helena M., 2019, Synonymies, a new combination, and four new species in Amphicnaeia Bates (Coleoptera: Cerambycidae: Lamiinae), Insecta Mundi 703 (703), pp. 1-18 : 7-8 7-8
Myrmelachista longiceps   NEW SPECIES  Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 33-36 33-36
Laneella purpurea   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 42-43 42-43
Hylomyrma montana     Ulysséa, Mônica Antunes, 2021, Taxonomic revision of the Neotropical ant genus Hylomyrma Forel, 1912 (Hymenoptera: Formicidae: Myrmicinae), with the description of fourteen new species, Zootaxa 5055 (1), pp. 1-137 : 83-86 83-86
Hygronemobius elegans   comb. nov.  Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016, First occurrence of Nemobiinae crickets in the Lesser Antilles (Orthoptera, Grylloidea, Trigonidiidae), with the descriptions of three new species, Zootaxa 4168 (2), pp. 313-326 : 323 323
Galeopsomyia elegans   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 174-175 174-175
Coprophanaeus     Edmonds, W. D. & Zidek, J., 2010, A taxonomic review of the neotropical genus Coprophanaeus Olsoufieff, 1924 (Coleoptera: Scarabaeidae, Scarabaeinae), Insecta Mundi 2010 (129), pp. 1-111 : 71-73 71-73
Mucuna monticola   sp. nov.  Moura, Tânia M., Zamora, Nelson A., Torke, Benjamin M., Mansano, Vidal De F. & Tozzi, Ana Maria G. A., 2012, A New Species of Mucuna (Leguminosae-Papilionoideae-Phaseoleae) from Costa Rica and Panama, Phytotaxa 60 (1), pp. 1-8 : 2-7 2-7
Lindsaea angustipinna   sp. nov.  Rojas-Alvarado, Alexander Francisco & Tejero-Díez, José Daniel, 2017, Novelties and notes in Lindsaea (Lindsaeaceae) from Mexico and Central America, Phytotaxa 296 (2), pp. 147-160 : 149-150 149-150
Mortoniella tapanti   sp. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 60-62 60-62
Adelomyrmex silvestrii     Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 28-29 28-29
Adelomyrmex tristani     Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 30-33 30-33
Titanochrysa simpliciala     Tauber, Catherine A., Sosa, Francisco & Contreras-Ramos, Atilano, 2018, Cryptochrysa Freitas & Penny, a generic homonym, replaced by Titanochrysa Sosa & Freitas (Neuroptera: Chrysopidae), Zootaxa 4375 (2), pp. 287-295 : 294 294
Couepia hallwachsiae   sp. nov.  Santamaria-Aguilar, Daniel & Lagomarsino, Laura. P., 2015, Synopsis of Couepia (Chrysobalanaceae) in Costa Rica, with a description of two new species, Phytotaxa 233 (1), pp. 69-79 : 70-72 70-72
Punjuba racemiflora     Soares, Marcos Vinicius Batista, Guerra, Ethiéne, Morim, Marli Pires & Iganci, João Ricardo Vieira, 2024, Taxonomic revision of the genus Punjuba (Leguminosae, Caesalpinioideae), Phytotaxa 659 (1), pp. 41-55 : 51-53 51-53
Aptilotella involucris   sp. nov.  Luk, Stephen P. L. & Marshall, Stephen A., 2014, A revision of the New World genus Aptilotella Duda (Sphaeroceridae: Limosininae), Zootaxa 3761 (1), pp. 1-156 : 27-28 27-28
Stenus costipennis     Puthz, Volker, 2015, Neotropische Stenus-Arten mit seitlich gerandetem Abdomen und gelappten Tarsen (Coleoptera, Staphylinidae) 344. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 47 (2), pp. 1601-1727 : 1653-1654 1653-1654
Mortoniella meralda   comb. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 31-34 31-34
Protoptila jolandae   sp. nov.  Holzenthal, Ralph W. & Blahnik, Roger J., 2006, The caddisfly genus Protoptila in Costa Rica (Trichoptera: Glossosomatidae), Zootaxa 1197, pp. 1-37 : 19-24 19-24
Tricorythodes sordidus     Baumgardner, David E. & Ávila, Socorro, 2006, Cabecar serratus, a new genus and species of leptohyphid mayfly from Central America, and description of the imaginal stages of Tricorythodes sordidus Allen (Ephemeroptera: Leptohyphidae), Zootaxa 1187 (1), pp. 47-59 : 54-57 54-57
Embates pseudobumbraticus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Embates cordiger   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Stenus simplicigutta   sp. nov.  Puthz, Volker, 2016, Übersicht über die neotropischen Arten der Gattung Stenus LATREILLE mit seitlich gerandetem Abdomen und ungelappten Tarsen (Coleoptera, Staphylinidae) 350. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 48 (2), pp. 1551-1634 : 1596-1598 1596-1598
Megaloprepus caerulatus     Feindt, Wiebke & Hadrys, Heike, 2022, The damselfly genus Megaloprepus (Odonata: Pseudostigmatidae): Revalidation and delimitation of species-level taxa including the description of one new species, Zootaxa 5115 (4), pp. 487-510 : 498-500 498-500
Paragrallomyia citrina   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 51-52 51-52
Paragrallomyia bifurcata   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 48-49 48-49
Bauhinia beguinotii     Juárez, Pedro, Flores, Rodolfo & Blanco, Mario A., 2018, Bauhinia proboscidea (Fabaceae: Cercidoideae), a new species from Costa Rica and Panama, with notes on B. beguinotii, B. gorgonae and B. pansamalana, Phytotaxa 361 (1), pp. 25-40 : 34-35 34-35
Heteragrion albifrons     Vilela, Diogo Silva, Lencioni, Frederico A. A., Bota-Sierra, Cornelio A., Ware, Jessica L. & Bispo, Pitágoras C., 2023, Taxonomic revision of the Neotropical genus Heteragrion Selys, 1862 (Zygoptera: Heteragrionidae): male morphology, new species and illustrated key, Zootaxa 5356 (1), pp. 1-96 : 19 19
Miconia evanescens   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 76-80 76-80
Miconia laxivenula   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 85-90 85-90
Buzyges idothea     Austin, George T. & Warren, Andrew D., 2009, New looks at and for Onespa, Buzyges, and Librita (Lepidoptera: Hesperiidae: Hesperiinae), with new combinations and descriptions of a new genus and six new species, Insecta Mundi 2009 (89), pp. 1-55 : 17-21 17-21
Stenus hostis   sp. nov.  Puthz, V., 2014, Neue und alte neotropische Stenus-Arten (Coleoptera, Staphylinidae) 339. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 46 (2), pp. 1671-1736 : 1695-1696 1695-1696
Symplocos panamensis     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Argia calverti   sp. nov.  Garrison, Rosser W. & Ellenrieder, Natalia Von, 2017, New species of the damselfly genus Argia from Mexico, Central America and Ecuador with an emphasis on Costa Rica (Insecta: Odonata: Coenagrionidae), Zootaxa 4235 (1), pp. 1-93 : 6-10 6-10
Miconia approximata   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 51-57 51-57
Oospila albipunctulata     Lindt, Aare, Hausmann, Axel & Viidalepp, Jaan, 2018, Review of some species groups of the genus Oospila Warren, with descriptions of nine new species (Lepidoptera: Geometridae: Geometrinae), Zootaxa 4497 (2), pp. 151-194 : 172-173 172-173
Banyallarga (Histricoverpa) fortuna     Prather Table Of Contents, Aysha L., 2004, Revision of the Neotropical caddisfly genus Banyallarga (Trichoptera: Calamoceratidae), Zootaxa 435 (1), pp. 1-76 : 26-27 26-27
Polyplectropus denticulus     Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, Zootaxa 2582, pp. 1-252 : 204-206 204-206
Xylocopa (Neoxylocopa) frontalis     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 17-22 17-22
Phylloicus aeneus     PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), Zootaxa 275 (1), pp. 1-214 : 21-26 21-26
Estoloides perforata     Santos-Silva, Antonio, Wappes, James E. & Galileo, Maria Helena M., 2018, Descriptions and synonymies in American Desmiphorini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4375 (4), pp. 451-501 : 453-454 453-454
Alobevania gattiae   n. sp.  Deans, A. R. & Kawada, R., 2008, Alobevania, a new genus of neotropical ensign wasps (Hymenoptera: Evaniidae), with three new species: integrating taxonomy with the World Wide Web., Zootaxa 1787, pp. 28-44 : 4-9 4-9
Cacostola plotkini   sp. nov.  Wappes, James E. & Santos-Silva, Antonio, 2019, New species and taxonomic notes for Cacostola Fairmaire and Germain, 1859 (Coleoptera: Cerambycidae: Lamiinae: Onciderini), Insecta Mundi 741 (741), pp. 1-20 : 2-3 2-3
Osoriellus trinitatis key  comb. nov.  Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 308-310 308-310
Microzygops nigrofasciatus     Hespenheide, Henry A., 2018, A Review of Microzygops Champion, 1906 (Coleoptera: Curculionidae: Conoderinae), with Description of a New Species, The Coleopterists Bulletin 72 (1), pp. 113-117 : 113-116 113-116
Embates paludicola   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Syringogaster brunneina   sp. nov.  Marshall, S. A., Buck, M., Skevington, J. H. & Grimaldi, D., 2009, A revision of the family Syringogastridae (Diptera: Diopsoidea), Zootaxa 1996 (1), pp. 1-80 : 30-35 30-35
Floromadane pictulus   sp. nov.  Prena, Jens, 2009, Floromadane, a new genus of baridine weevils associated with Rubiaceae in Costa Rica and Panama (Coleoptera: Curculionidae: Baridinae), Beiträge Zur Entomologie = Contributions to Entomology 59 (1), pp. 239-246 : 245 245
Embates clandestinus   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Dazollina petilunca   sp. nov.  Sanborn, Allen F., 2018, Two new genera and two new species of cicadas from Central America (Hemiptera: Cicadidae: Cicadinae), Zootaxa 4418 (2), pp. 149-160 : 151-154 151-154
Embates leucopleura subsp. discolor   subsp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Embates discordabilis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Hypoxys eburatulus   comb. nov.  Nunes, Benedito Mendes, Campos, Lourival Dias, Mendonca, Maria Thayane Da Silva, Cunha, Eduardo Victor De Paiva & Fernandes, Jose Antonio Marin, 2020, Revision of Hypoxys Amyot & Serville, 1843 stat. rest. (Heteroptera Pentatomidae), Zootaxa 4742 (3), pp. 401-441 : 413-414 413-414
Embates burgeri   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Costarina superplena   sp. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna, American Museum Novitates 2014 (3794), pp. 1-76 : 4-5 4-5
Megalota spinulosa   sp. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 17-19 17-19
Beltia nicaraguensis     Flowers, R. Wills, 2018, A review of the genus Beltia Jacoby (Chrysomelidae: Eumolpinae: Eumolpini), with descriptions of fourteen new species from Costa Rica, Panama, and northwestern South America, Insecta Mundi 672, pp. 1-43 : 16-17 16-17
Megalota delphinosema   comb. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 20-21 20-21
Paragrallomyia nodulosa   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 57-58 57-58
Bothriomyrmex paradoxus     Matthew Prebus & David Lubertazzi, 2016, A new species of the ant genus Bothriomyrmex Emery, 1869 (Hymenoptera: Formicidae) from the Caribbean region, European Journal of Taxonomy 211, pp. 1-12 : 9 9
Heterochele actias   sp. nov.  Viswajyothi, Keezhpattillam & Clark, Shawn M., 2021, A new genus and two new species of Galerucinae from Costa Rica (Coleoptera: Chrysomelidae), Journal of Natural History 54 (47 - 48), pp. 3103-3119 : 3113-3116 3113-3116
Cheiloneurus fidenas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 243-245 243-245
Stenus hinojosai   sp. nov.  Puthz, V., 2014, Neue und alte neotropische Stenus-Arten (Coleoptera, Staphylinidae) 339. Beitrag zur Kenntnis der Steninen, Linzer biologische Beiträge 46 (2), pp. 1671-1736 : 1709-1710 1709-1710
Miconia magnifolia   nom. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 91-95 91-95
Eleusis bicolor     Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 294-296 294-296
Cordiluroides listrata     LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, Zootaxa 3650 (1), pp. 1-147 : 108 108
Absonemobius alatus     Desutter-Grandcolas, Laure & Hugel, Sylvain, 2016, First occurrence of Nemobiinae crickets in the Lesser Antilles (Orthoptera, Grylloidea, Trigonidiidae), with the descriptions of three new species, Zootaxa 4168 (2), pp. 313-326 : 321-322 321-322
Crematogaster jardinero   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 75-78 75-78
Galeopsomyia wilsonae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 470-471 470-471
Odontocheila iodopleura     Moravec, Jiří, Brzoska, David & Huber, Ronald, 2017, Taxonomic and nomenclatorial revision within the Neotropical genera of the subtribe Odontocheilina W. Horn in a new sense — 18. Six Mexican and Central American species related to Odontocheila mexicana Laporte de Castelnau and O. ignita Chaudoir, with a description of O. potosiana sp. nov., Zootaxa 4231 (4), pp. 451-499 : 471-480 471-480
Platycesta depressa   comb. nov.  Viswajyothi, Keezhpattillam & Clark, Shawn M., 2021, A New Genus to Accommodate Central and South American Beetles with Broadly Explanate Elytra, Formerly Assigned to Monocesta Clark and Coelomera Chevrolat (Coleoptera: Chrysomelidae: Galerucinae: Galerucini), The Coleopterists Bulletin 75 (2), pp. 473-484 : 474-483 474-483
Megalota simpliciana   sp. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 19-20 19-20
Diplosynapsis fisheri   sp. nov.  Vieira, Rodrigo & Rafael, José Albertino, 2016, Revision of Diplosynapsis Enderlein, 1914 (Diptera, Asilidae, Asilinae) with description of four new species, Zootaxa 4208 (2), pp. 127-148 : 137-138 137-138
Cheiloneurus origo   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 342-344 342-344
Diglyphomorphomyia pedunculata   sp. nov.  Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, Zootaxa 5141 (4), pp. 321-340 : 332-334 332-334
Azteca nigricans     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 40-41 40-41
Lachnomyrmex grandis     Feitosa, R. M. & Brandão, C. R. F., 2008, A taxonomic revision of the Neotropical myrmicine ant genus Lachnomyrmex Wheeler (Hymenoptera: Formicidae), Zootaxa 1890, pp. 1-49 : 15-17 15-17
Melaloncha punctifrons     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 15-16 15-16
Cheiloneurus miranda   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 274-276 274-276
Melaloncha gomezi   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 51-52 51-52
Bothriomyrmex paradoxus   sp. nov.  Dubovikov, D. A. & Longino, J. T., 2004, A new species of the genus Bothriomyrmex Emery, 1869 (Hymenoptera: Formicidae: Dolichoderinae) from Costa Rica., Zootaxa 776, pp. 1-10 : 3-8 3-8
Mahencyrtus nitidus     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 158-159 158-159
Azteca beltii     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 21-22 21-22
Azteca sericeasur   new species  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 46-48 46-48
Crematogaster foliocrypta   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 73-75 73-75
Adelomyrmex myops     Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 24-26 24-26
Ganoderma applanatum     Mardones, Melissa, Carranza-Velazquez, Julieta, Mata-Hidalgo, Milagro, Amador-Fernandez, Xaviera & Urbina, Hector, 2023, Taxonomy and phylogeny of the genus Ganoderma (Polyporales, Basidiomycota) in Costa Rica, MycoKeys 100, pp. 5-47 : 5 5
Symplocos povedae     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Orasema stramineipes     Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 87-89 87-89
Microctonus cappilicrus   sp. nov.  Pucci, Thomas M., 2013, Contributions to the classification of North American Microctonus (Braconidae, Euphorinae), Zootaxa 3725 (1), pp. 1-150 : 14-15 14-15
Triaenodes tapanti   sp. nov.  Holzenthal, Ralph W. & Contents, Trond Andersen Table Of, 2004, The caddisfly genus Triaenodes in the Neotropics (Trichoptera: Leptoceridae), Zootaxa 511 (1), pp. 1-80 : 34-35 34-35
Orasema arimbome   sp. nov.  Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 16-19 16-19
Limnocoris virescens     Rodrigues, Higor D. D. & Sites, Robert W., 2019, Revision of Limnocoris (Heteroptera: Nepomorpha: Naucoridae) of North America, Zootaxa 4629 (4), pp. 451-497 : 487-489 487-489
Azotoctla femorata     Cardona-Duque, Juliana & Franz, Nico M., 2012, Description and phylogeny of a new Neotropical genus of Acalyptini (Coleoptera: Curculionidae: Curculioninae) associated with the staminodes of Cyclanthaceae, Zoological Journal of the Linnean Society 166 (3), pp. 559-623 : 594-599 594-599
Pedinotus columbianus     Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 25-30 25-30
Azteca nigra   new status  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 38-40 38-40
Aulacus heredia   sp. nov.  Smith, David R., 2008, Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera), Beiträge Zur Entomologie = Contributions to Entomology 58 (2), pp. 267-355 : 284-285 284-285
Triaeris stenaspis     Platnick, Norman I., Dupérré, Nadine, Ubick, Darrell & Fannes, Wouter, 2012, Got Males?: The Enigmatic Goblin Spider Genus Triaeris (Araneae, Oonopidae), American Museum Novitates 2012 (3756), pp. 1-36 : 22-30 22-30
Azteca quadraticeps   new species  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 45-46 45-46
Adelomyrmex longinoi   NEW SPECIES  Fernández, F., 2003, Revision of the myrmicine ants of the Adelomyrmex genus-group (Hymenoptera: Formicidae)., Zootaxa 361, pp. 1-52 : 21-22 21-22
Azteca gnava     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 34-35 34-35
Adelius panamensis   sp. nov.  Shimbori, Eduardo M., Bortoni, Marco A., Shaw, Scott R., Souza-Gessner, Carolina Da S., Cerântola, Paula De C. M. & Penteado-Dias, Angélica M., 2019, Revision of the New World genera Adelius Haliday and Paradelius de Saeger (Hymenoptera: Braconidae: Cheloninae: Adeliini), Zootaxa 4571 (2), pp. 151-200 : 184-185 184-185
Embates crinipes   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Azteca tonduzi     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 49 49
Schildia microthorax     Dikow, Torsten & Bayless, Keith M., 2009, Taxonomic revision of the genus Schildia Aldrich, 1923 (Diptera: Asilidae: Leptogastrinae) with the description of new extant and extinct species, Insect Systematics & Evolution 40, pp. 253-289 : 280-282 280-282
Ariadna reginae   sp. nov.  Giroti, André Marsola & Brescovit, Antonio Domingos, 2018, The taxonomy of the American Ariadna Audouin (Araneae: Synspermiata: Segestriidae), Zootaxa 4400 (1), pp. 1-114 : 87-90 87-90
Gonatocerus (Gastrogonatocerus) membraciphagus     Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 68-71 68-71
Alitocoris schraderi     Garbelotto, Thereza De A., Campos, Luiz A. & Grazia, Jocelia, 2013, Cladistics and revision of Alitocoris with considerations on the phylogeny of the Herrichella clade (Hemiptera, Pentatomidae, Discocephalinae, Ochlerini), Zoological Journal of the Linnean Society 168, pp. 452-472 : 458-462 458-462
Paranisopodus thalassinus   sp. nov.  Santos-Silva, Antonio & Devesa, Sergio, 2021, New species and new records in American Acanthocinini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4942 (4), pp. 569-582 : 578-581 578-581
Passiflora brauliensis   sp. nov.  Kuethe, J. R., Rodríguez-Barboza, Gared & Álvarez-Alcázar, Leonardo, 2023, Passiflora brauliensis, a new species of Passiflora supersection Laurifoliae (Passifloraceae) from the volcanic forest of Costa Rica, Phytotaxa 584 (2), pp. 121-129 : 122-126 122-126
Azteca schimperi     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 58-60 58-60
Schizoptera (Odontorhagus) acuta   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 262-263 262-263
Phyllophaga (Phyllophaga) naranjina   sp. nov.  Morón, Miguel Angel & Solís, Angel, 2001, Seven New Species Of Phyllophaga (S. Str.) Harris From Costa Rica (Coleoptera: Melolonthidae: Melolonthinae), The Coleopterists Bulletin 55 (1), pp. 11-29 : 24-26 24-26
Orasema janzeni   sp. nov.  Heraty, John M. & Baker, Austin J., 2020, New species of Orasema (Hymenoptera: Eucharitidae) from Central and South America, Journal of Natural History 54 (9), pp. 735-754 : 742-744 742-744
Specklinia simmleriana     Karremans, Adam, Salguero, Grettel, Bogarín, Diego, Oses, Lizbeth & Cedeño-Fonseca, Marco, 2020, Illustrations and studies in Neotropical Orchidaceae: the Specklinia brighamii group (Pleurothallidinae) in Costa Rica, Phytotaxa 447 (1), pp. 16-30 : 25-27 25-27
Mortoniella akantha   sp. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 11-14 11-14
Mortoniella propinqua   sp. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 46-49 46-49
Xylocopa (Neoxylocopa) ocellaris     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 30-32 30-32
Brycon     Toledo-Piza, Mônica, Baena, Eduardo G., Dagosta, Fernando C. P., Menezes, Naércio A., Ândrade, Marcelo, Benini, Ricardo C., Bertaco, Vinicius A., Birindelli, José Luís O., Boden, Gert, Buckup, Paulo A., Camelier, Priscila, Carvalho, Fernando R., Castro, Ricardo M. C., Chuctaya, Junior, Decru, Eva, Derijst, Eddy, Dillman, Casey B., Ferreira, Katiane M., Merxem, Dimitri G., Giovannetti, Victor, Hirschmann, Alice, Jégu, Michel, Jerep, Fernando C., Langeani, Francisco, Lima, Flávio C. T., Lucena, Carlos A. S., Lucena, Zilda Margarete S., Malabarba, Luiz R., Malabarba, Maria Cláudia S. L., Marinho, Manoela M. F., Mathubara, Kleber, Mattox, George M. T., Melo, Bruno F., Moelants, Tuur, Moreira, Cristiano R., Musschoot, Tobias, Netto-Ferreira, André L., Ota, Rafaela P., T. Oyakawa, Osvaldo, Pavanelli, Carla S., Reis, Roberto E., Santos, Osmar, Serra, Jane Piton, Silva, Gabriel S. C., Silva-Oliveira, Cárlison, Souza-Lima, Rosana, Vari, Richard P. & Zanata, Angela M., 2024, Checklist of the species of the Order Characiformes (Teleostei: Ostariophysi), Neotropical Ichthyology (e 230086) 22 (1), pp. 1-548 : 69-77 69-77
Specklinia spectabilis   comb. nov.  Pupulin, Franco, Karremans, Adam P. & Gravendeel, Barbara, 2012, A reconsideration of the empusellous species of Specklinia (Orchidaceae: Pleurothallidinae) in Costa Rica, Phytotaxa 63 (1), pp. 1-20 : 15-18 15-18
Miconia latidecurrens   sp. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 83-85 83-85
Blepharoneura tau   sp. nov.  Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 112-113 112-113
Coniceromyia setitarsalis     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 54-55 54-55
Dohrniphora zumbadoi   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 73 73
Neoacanthoneura geomyzina   sp. nov.  Kameneva, Elena P., 2012, Revision of Aciuroides Hendel and Neoacanthoneura Hendel (Diptera: Ulidiidae: Pterocallini), Zootaxa 3227, pp. 1-33 : 28-29 28-29
Dohrniphora nigricarina   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 56 56
Enderleinphora fuscohalterata   comb. nov.  Disney, R. Henry L., 2004, Genera resembling Beckerina Malloch (Diptera: Phoridae), Zootaxa 518 (1), pp. 1-28 : 16-17 16-17
Himantigera nigrifemorata     Fachin, Diego Aguilar & Hauser, Martin, 2018, Taxonomic revision of the Neotropical genus Himantigera James, 1982 (Diptera: Stratiomyidae: Sarginae), including the description of two new species and a key to the known species, Zootaxa 4531 (4), pp. 451-498 : 458-459 458-459
Embates pauhans   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Dohrniphora lafondaensis   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 19 19
Orasema nyamo   sp. nov.  Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 71-73 71-73
Osbornellus springerae   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 27 27
Blepharoneura splendida     Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 109-112 109-112
Enderleinphora hansoni   sp. nov.  Disney, R. Henry L., 2004, Genera resembling Beckerina Malloch (Diptera: Phoridae), Zootaxa 518 (1), pp. 1-28 : 17-19 17-19
Coniceromyia mexicana     Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 56 56
Gonatocerus (Gonatocerus) mexicanus     Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 31-34 31-34
Neopleurophora lamasi   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 48 48
Melaloncha erinacea   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 49-50 49-50
Ostracocoelia mirabilis     Norrbom, Allen L., Sutton, Bruce D., Steck, Gary J. & Monzón, José, 2010, New genera, species and host plant records of Nearctic and Neotropical Tephritidae (Diptera) 2398, Zootaxa 2398, pp. 1-65 : 28-29 28-29
Coniceromyia puntarenensis   sp. nov.  Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 37-38 37-38
Dohrniphora selenis   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 82 82
Dohrniphora amacayavia   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 64-66 64-66
Laneella fusconitida   sp. nov.  Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 24-27 24-27
Dohrniphora ocellifrons   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 39 39
Coniceromyia auristriata     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 13-16 13-16
Dohrniphora nebulisilvensis   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 118 118
Melaloncha zurquiensis   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 36-37 36-37
Blepharoneura macwilliamsae   sp. nov.  Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 79-81 79-81
Dohrniphora jalizanoi   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 92 92
Brownphora sinefurca   comb. nov.  Disney, R. Henry L., 2004, Genera resembling Beckerina Malloch (Diptera: Phoridae), Zootaxa 518 (1), pp. 1-28 : 14-15 14-15
Coniceromyia convergens     Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 55 55
Blepharoneura sinepuncta   sp. nov.  Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 107-109 107-109
Ganoderma chocoense     Mardones, Melissa, Carranza-Velazquez, Julieta, Mata-Hidalgo, Milagro, Amador-Fernandez, Xaviera & Urbina, Hector, 2023, Taxonomy and phylogeny of the genus Ganoderma (Polyporales, Basidiomycota) in Costa Rica, MycoKeys 100, pp. 5-47 : 5 5
Specklinia tirimbina   sp. nov.  Karremans, Adam, Salguero, Grettel, Bogarín, Diego, Oses, Lizbeth & Cedeño-Fonseca, Marco, 2020, Illustrations and studies in Neotropical Orchidaceae: the Specklinia brighamii group (Pleurothallidinae) in Costa Rica, Phytotaxa 447 (1), pp. 16-30 : 27-29 27-29
Neopleurophora acrochaetopyga   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 19-20 19-20
Heteragrion majus     Ramírez, Alonso & Gutiérrez-Fonseca, Pablo E., 2013, The larvae of Heteragrion majus Selys and H. atrolineatum Donnelly, with a key to known species from Costa Rica (Odonata: Megapodagrionidae), Zootaxa 3609 (1), pp. 96-100 : 97-98 97-98
Phoneutria depilata     Hazzi, Nicolas A. & Hormiga, Gustavo, 2021, Morphological and molecular evidence support the taxonomic separation of the medically important Neotropical spiders Phoneutria depilata (Strand, 1909) and P. boliviensis (F. O. Pickard-Cambridge, 1897) (Araneae, Ctenidae), ZooKeys 1022, pp. 13-50 : 13 13
Megaselia shadeae   sp. n.  Hartop, Emily A. & Brown, Brian V., 2014, The tip of the iceberg: a distinctive new spotted-wing Megaselia species (Diptera: Phoridae) from a tropical cloud forest survey and a new, streamlined method for Megaselia descriptions, Biodiversity Data Journal 2, pp. 4093-4093 : 4093 4093
Macgrathphora longifurca   sp. nov.  Brown, Brian V., 2022, Two new genera of phorid flies, Macgrathphora and Aurisetiphora, from Costa Rica (Diptera: Phoridae), with recommendations for naming new genera in the family, Zootaxa 5115 (4), pp. 571-581 : 575-577 575-577
Megaselia shadeae   sp. n.  Hartop, Emily A. & Brown, Brian V., 2014, The tip of the iceberg: a distinctive new spotted-wing Megaselia species (Diptera: Phoridae) from a tropical cloud forest survey and a new, streamlined method for Megaselia descriptions, Biodiversity Data Journal 2, pp. 4093-4093 : 4093 4093
Lenkoa phillipei   sp. nov.  Brown, Brian V. & Porras, Wendy, 2016, A second species, and first Central American record, of the phorid fly genus Lenkoa Borgmeier (Diptera: Phoridae), Zootaxa 4168 (3), pp. 583-588 : 583-587 583-587
Galeopsomyia fausta     Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 197 197
Galeopsomyia lemuris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 357-358 357-358
Aulacigaster zurqui   sp. nov.  Rung, Alessandra, 2018, A new species of Aulacigaster from Zurquí de Moravia, a Costa Rican cloud forest (Diptera: Aulacigastridae), Zoologia (e 13047) 35, pp. 1-6 : 3-5 3-5
Scipopus (Parascipopus) fenestratus   subgen. et sp. nov.  Lindsay, Kate & Marshall, Stephen A., 2023, A revision of Scipopus Enderlein including the subgenera Scipopus s. str., Phaeopterina Frey and Parascipopus subgen. nov. (Diptera, Micropezidae, Taeniapterinae), European Journal of Taxonomy 904, pp. 1-189 : 89-92 89-92
Galeopsomyia ibis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 118-119 118-119
Tanytarsus costarica   sp. nov.  Reis, Patricia Do Rosario, Gil-Azevedo, Leonardo H. & Ferreira-Keppler, Ruth L., 2021, Two new species of Tanytarsus van der Wulp (Diptera: Chironomidae) from Costa Rica, Zootaxa 4966 (1), pp. 84-90 : 87-89 87-89
Scipopus (Parascipopus) otisi   subgen. et sp. nov  Lindsay, Kate & Marshall, Stephen A., 2023, A revision of Scipopus Enderlein including the subgenera Scipopus s. str., Phaeopterina Frey and Parascipopus subgen. nov. (Diptera, Micropezidae, Taeniapterinae), European Journal of Taxonomy 904, pp. 1-189 : 104-106 104-106
Galeopsomyia artis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 236-238 236-238
Galeopsomyia beltearis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 71-72 71-72
Galeopsomyia alanis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 217-218 217-218
Galeopsomyia druparum   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 95-97 95-97
Grotiusomyia pilosa   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 56 56
Galeopsomyia intesa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 338-339 338-339
Scipopus (Parascipopus) manifestus   subgen. et comb. nov.  Lindsay, Kate & Marshall, Stephen A., 2023, A revision of Scipopus Enderlein including the subgenera Scipopus s. str., Phaeopterina Frey and Parascipopus subgen. nov. (Diptera, Micropezidae, Taeniapterinae), European Journal of Taxonomy 904, pp. 1-189 : 94-98 94-98
Galeopsomyia philyra   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 150-151 150-151
Tanytarsus briani   sp. nov.  Reis, Patricia Do Rosario, Gil-Azevedo, Leonardo H. & Ferreira-Keppler, Ruth L., 2021, Two new species of Tanytarsus van der Wulp (Diptera: Chironomidae) from Costa Rica, Zootaxa 4966 (1), pp. 84-90 : 85-87 85-87
Mortoniella stilula   sp. nov.  Blahnik, Roger J. & Holzenthal, Ralph W., 2008, Revision of the Mexican and Central American species of Mortoniella (Trichoptera: Glossosomatidae: Protoptilinae), Zootaxa 1711 (1), pp. 1-72 : 58 58
Oospila ehakernae   sp. nov.  Lindt, Aare, Hausmann, Axel & Viidalepp, Jaan, 2018, Review of some species groups of the genus Oospila Warren, with descriptions of nine new species (Lepidoptera: Geometridae: Geometrinae), Zootaxa 4497 (2), pp. 151-194 : 165-166 165-166
Petiolachertus castor   sp. nov.  Hansson, Christer, 2024, Two new genera of Eulophinae (Hymenoptera: Eulophidae), including four new species parasitoids on Gracillariidae (Lepidoptera) leaf miners in Costa Rica, Zootaxa 5447 (4), pp. 562-572 : 563-565 563-565
Orixia philotes   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 147-148 147-148
Closterocerus angustipennis   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 21-22 21-22
Closterocerus eulampis   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 47-48 47-48
Xylocopa (Neoxylocopa) fimbriata     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 7-16 7-16
Galeopsomyia zunigai   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 169-171 169-171
Galeopsomyia anis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 229-230 229-230
Galeopsomyia codata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 278-279 278-279
Galeopsomyia bidensiae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 73-75 73-75
Galeopsomyia cortina   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 282-283 282-283
Galeopsomyia noyesi   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 144-146 144-146
Galeopsomyia copalensis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 88-90 88-90
Galeopsomyia zurquiensis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 473-474 473-474
Galeopsomyia carbonis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 265-266 265-266
Galeopsomyia noblitis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 417-418 417-418
Galeopsomyia camachoi   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 79-80 79-80
Galeopsomyia gigantensis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 316-317 316-317
Galeopsomyia fuga   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 178-179 178-179
Galeopsomyia blendis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 190-191 190-191
Galeopsomyia monteverdensis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 141-143 141-143
Schizoptera (Odontorhagus) aspera   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 264-265 264-265
Teramocerus     Mantilleri, Antoine, 2015, What is Teramocerus Schoenherr, 1840? A new definition from revision and phylogeny of the group (Insecta, Coleoptera, Brentidae), Zoosystema 37 (2), pp. 285-322 : 287-297 287-297
Xylocopa (Neoxylocopa) nautlana     Mérida-Rivas, Jorge A., Hinojosa-Díaz, Ismael A., Ayala-Barajas, Ricardo, Pozo, Carmen & Vandame, Rémy, 2022, Revision of carpenter bees of the subgenus Neoxylocopa Michener (Hymenoptera: Apidae) from Mexico and Mesoamerica, Zootaxa 5158 (1), pp. 1-67 : 22-26 22-26
Zelus panamensis   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Zelus panamensis   sp. n.  Zhang, Guanyang, Hart, Elwood R & Weirauch, Christiane, 2016, A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens, Biodiversity Data Journal 4, pp. 8150-8150 : 8150 8150
Couepia janzenii   sp. nov.  Santamaria-Aguilar, Daniel & Lagomarsino, Laura. P., 2015, Synopsis of Couepia (Chrysobalanaceae) in Costa Rica, with a description of two new species, Phytotaxa 233 (1), pp. 69-79 : 73-75 73-75
Orasema masonicki   sp. nov.  Baker, Austin J. & Heraty, John M., 2020, The New World ant parasitoid genus Orasema (Hymenoptera: Eucharitidae), Zootaxa 4888 (1), pp. 1-84 : 68-70 68-70
Roederiodes costaricensis   sp. nov.  Sinclair, Bradley J., 2023, Revision of New World species of Roederiodes Coquillett (Diptera: Empididae: Clinocerinae), Zootaxa 5301 (3), pp. 336-364 : 341-342 341-342
Galeopsomyia amphis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 226-227 226-227
Litoleptis tico   sp. nov.  Grimaldi, David A., 2018, First Tropical American Species of the “ Relict ” Genus Litoleptis, and Relationships in Spaniinae (Diptera: Rhagionidae), American Museum Novitates 2018 (3909), pp. 1-20 : 4-11 4-11
Megalopinus cuspidiger   sp. nov.  Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 739-740 739-740
Mucomyia browni   sp. nov.  Kvifte, Gunnar Mikalsen, Curler, Gregory R. & Marshall, Stephen A., 2018, Aquatic insects in the forest canopy: a new genus of moth flies (Diptera: Psychodidae) developing in slime on aerial roots, Journal of Natural History 52 (3 - 4), pp. 137-153 : 147-150 147-150
Megalopinus tauripenis   sp. nov.  Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 691-692 691-692
Macroplectron nishidai   sp. nov.  Hansson, Christer, 2024, Two new genera of Eulophinae (Hymenoptera: Eulophidae), including four new species parasitoids on Gracillariidae (Lepidoptera) leaf miners in Costa Rica, Zootaxa 5447 (4), pp. 562-572 : 567-569 567-569
Parygrus maya   sp. nov.  Barr, Cheryl B. & Shepard, William D., 2020, Hiding in plain sight: rediscovery and review of Parygrus Erichson, 1847, with description of five new species from the Neotropics (Coleoptera: Byrrhoidea Dryopidae), Zootaxa 4755 (1), pp. 99-128 : 111-114 111-114
Reductoonops naci   sp. nov.  Platnick, Norman I. & Berniker, Lily, 2014, ffle Neotropical goblin spiders of the new genus Reductoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3811), pp. 1-75 : 14-16 14-16
Polyplectropus alleni     Chamorro, Maria Lourdes & Holzenthal, Ralph W., 2010, 2582, Zootaxa 2582, pp. 1-252 : 146-148 146-148
Scybalocanthon moniliatus     Silva, Fernando A. B. & Valois, Marcely, 2019, A taxonomic revision of the genus Scybalocanthon Martínez, 1948 (Coleoptera Scarabaeidae: Scarabaeinae: Deltochilini), Zootaxa 4629 (3), pp. 301-341 : 327-328 327-328
Cheiloneurus bion   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 352-353 352-353
Miconia aurantiaca   comb. nov.  Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 60-62 60-62
Triaenodes delicatus     Holzenthal, Ralph W. & Contents, Trond Andersen Table Of, 2004, The caddisfly genus Triaenodes in the Neotropics (Trichoptera: Leptoceridae), Zootaxa 511 (1), pp. 1-80 : 20-23 20-23
Fidicinoides coffea   sp. nov.  Sanborn, Allen F., Moore, Thomas E. & Young, Allen M., 2008, Two new cicada species from Costa Rica (Hemiptera: Cicadomorpha: Cicadidae) with a key to the species of Fidicinoides in Costa Rica, Zootaxa 1846, pp. 1-20 : 3-10 3-10
Phylloicus lituratus     PRATHER, AYSHA L., 2003, Revision of the Neotropical caddisfly genus Phylloicus (Trichoptera: Calamoceratidae), Zootaxa 275 (1), pp. 1-214 : 62-65 62-65
Fidicina variegata   sp. nov.  Sanborn, Allen F., 2005, Fidicina variegata, a New Cicada Species from Costa Rica (Hemiptera: Cicadomorpha: Cicadidae), Annals of the Entomological Society of America 98 (2), pp. 187-190 : 187-189 187-189
Mucomyia emersa   sp. nov.  Kvifte, Gunnar Mikalsen, Curler, Gregory R. & Marshall, Stephen A., 2018, Aquatic insects in the forest canopy: a new genus of moth flies (Diptera: Psychodidae) developing in slime on aerial roots, Journal of Natural History 52 (3 - 4), pp. 137-153 : 140-146 140-146
Megalopinus pulcherrimus     Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 668 668
Armillipora nawak   sp. nov.  Jaume-Schinkel, Santiago, 2024, Further contributions to the taxonomy of Armillipora Quate (Diptera, Psychodidae) with the description of two additional new species, Evolutionary Systematics 8 (1), pp. 145-154 : 145-154 145-154
Rasopone pluviselva   sp. nov.  Longino, John T. & Branstetter, Michael G., 2020, Phylogenomic Species Delimitation, Taxonomy, and ‘ Bird Guide’ Identification for the Neotropical Ant Genus Rasopone (Hymenoptera: Formicidae), Insect Systematics and Diversity 4 (2), No. 1, pp. 1-33 : 25-26 25-26
Osoriellus debilis   comb. nov.  Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 264-266 264-266
Stenopygium punctipennis     Soares, Matheus M. M. & Ale-Rocha, Rosaly, 2020, New records of Stenopygium Becker (Diptera: Dolichopodidae) from the Neotropical Region, and a key to species, Zootaxa 4868 (1), pp. 129-134 : 131 131
Grotiusomyia nigricans     Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 42-43 42-43
Grotiusomyia hansoni   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 49-50 49-50
Cheiloneurus nintra   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 283-285 283-285
Prochiloneurus zunigai   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 488-490 488-490
Galeopsomyia falla   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 307-308 307-308
Adelencyrtus plocus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 36-38 36-38
Coccidencyrtus ochraceipes     Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 110-111 110-111
Megalomyrmex drifti     Brandão, Carlos Roberto F., 2003, Further Revisionary Studies On The Ant Genus Megalomyrmex Forel (Hymenoptera: Formicidae: Myrmicinae: Solenopsidini) C R F. B Abstract, Papéis Avulsos de Zoologia (São Paulo) 43 (8), pp. 145-159 : 157 157
Symplocos austin-smithii     Kelly, Lawrence M., Almeda, Frank & Fritsch, Peter W., 2016, A taxonomic revision of Mexican and Central American Symplocos (Symplocaceae), Phytotaxa 264 (1), pp. 448-450 : 448-450 448-450
Bromus carinatus     Saarela, Jeffery M., Peterson, Paul M. & Valdés-Reyna, Jesus, 2014, A taxonomic revision of Bromus (Poaceae: Pooideae: Bromeae) in México and Central America, Phytotaxa 185 (1), pp. 1-147 : 35-41 35-41
Simopelta anomma   sp. nov.  Fernandes, Itanna O., Souza, Jorge L. P., C, Fernando Fernández, Delabie, Jacques H. C. & Schultz, Ted R., 2015, A new species of Simopelta (Hymenoptera: Formicidae: Ponerinae) from Brazil and Costa Rica, Zootaxa 3956 (2), pp. 295-300 : 297-299 297-299
Orthonevra nitidula     Miranda, Gil F. G., Soares, Matheus M. M. & Thompson, Christian, 2024, The Neotropical Orthonevra Macquart, 1829 (Diptera: Syrphidae), Zootaxa 5484 (1), pp. 1-78 : 54-56 54-56
Orthonevra gouletmasnerorum   sp. nov.  Miranda, Gil F. G., Soares, Matheus M. M. & Thompson, Christian, 2024, The Neotropical Orthonevra Macquart, 1829 (Diptera: Syrphidae), Zootaxa 5484 (1), pp. 1-78 : 33-34 33-34
Lycianthes furcatistellata     Dean, Ellen A. & Reyes, Miriam, 2018, Lectotypification of names in the genus Lycianthes (Solanaceae), Phytotaxa 349 (1), pp. 39-46 : 41-42 41-42
Lycianthes furcatistellata     Dean, Ellen A. & Reyes, Miriam, 2018, Lectotypification of names in the genus Lycianthes (Solanaceae), Phytotaxa 349 (1), pp. 39-46 : 41-42 41-42
Platygerris caeruleus     Pacheco-Chaves, Bernald, Cordeiro, Isabelle Da Rocha Silva, Moreira, Felipe Ferraz Figueiredo & Springer, Monika, 2018, The water striders (Hemiptera: Heteroptera: Gerridae) of Costa Rica: new species, checklist, and new records, Zootaxa 4471 (3), pp. 493-522 : 499 499
Onespa nakamura   sp. nov.  Austin, George T. & Warren, Andrew D., 2009, New looks at and for Onespa, Buzyges, and Librita (Lepidoptera: Hesperiidae: Hesperiinae), with new combinations and descriptions of a new genus and six new species, Insecta Mundi 2009 (89), pp. 1-55 : 12-14 12-14
Buzyges mellanaformis   sp. nov.  Austin, George T. & Warren, Andrew D., 2009, New looks at and for Onespa, Buzyges, and Librita (Lepidoptera: Hesperiidae: Hesperiinae), with new combinations and descriptions of a new genus and six new species, Insecta Mundi 2009 (89), pp. 1-55 : 25-28 25-28
Orasema costaricensis     Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 26-27 26-27
Cheiloneurus genys   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 278-280 278-280
Tico sinabelus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 161-162 161-162
Cheiloneurus catreta   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 237-239 237-239
Cheiloneurus hamadryas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 265-267 265-267
Cheiloneurus idifex   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 418-420 418-420
Novalena approximata     Maya-Morales, Julieta & Jiménez, María Luisa, 2017, Revision of the funnel-web spider genus Novalena (Araneae: Agelenidae), Zootaxa 4262 (1), pp. 1-88 : 12-15 12-15
Bithoracochaeta flavicoxa     LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, Zootaxa 3650 (1), pp. 1-147 : 102 102
Otostigmus fossulatus     Thofern, Detlef, Dupérré, Nadine & Harms, Danilo, 2021, An annotated type catalogue of the centipedes (Myriapoda: Chilopoda) held in the Zoological Museum Hamburg, Zootaxa 4977 (1), pp. 1-103 : 63-64 63-64
Monstera anomala   sp. nov.  Zuluaga, Alejandro & Cameron, Kenneth M., 2018, Two new species of Monstera (Araceae: Monsteroideae) with entire leaves from Panama and Costa Rica, Phytotaxa 334 (1), pp. 1-9 : 2-5 2-5
Syscia murillocruzae   sp. nov.  Longino, John T. & Branstetter, Michael G., 2021, Integrating UCE Phylogenomics With Traditional Taxonomy Reveals a Trove of New World Syscia Species (Formicidae: Dorylinae), Insect Systematics and Diversity 5 (2), No. 2, pp. 1-51 : 29 29
Protoneura aurantiaca     Ellenrieder, Natalia Von & Garrison, Rosser W., 2017, A synopsis of the Neotropical genus Protoneura (Odonata: Coenagrionidae), Zootaxa 4361 (1), pp. 1-76 : 13-15 13-15
Fortipalpa heredia   sp. nov.  Supeleto, Fernanda A., Santos, Bernardo F. & Aguiar, Alexandre P., 2022, Revision of Fortipalpa Kasparyan & Ruíz-Cancino, (Ichneumonidae, Cryptinae), Zootaxa 5219 (6), pp. 501-533 : 512-515 512-515
Glenognatha spherella     Jimmy Cabra-García & Antonio D. Brescovit, 2016, Revision and phylogenetic analysis of the orb-weaving spider genus Glenognatha Simon, 1887 (Araneae, Tetragnathidae), Zootaxa 4069 (1), pp. 1-183 : 129-134 129-134
Neodexiopsis emmesa     LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, Zootaxa 3650 (1), pp. 1-147 : 111 111
Neodexiopsis obtusiloba     LÖWENBERG-NETO, PETER & DE CARVALHO, CLAUDIO J. B., 2013, Muscidae (Insecta: Diptera) of Latin America and the Caribbean: geographic distribution and check-list by country, Zootaxa 3650 (1), pp. 1-147 : 114 114
Lachesilla albrookensis   sp. nov.  García Aldrete, Alfonso N. & Silva-Neto, Alberto Moreira Da, 2020, New Neotropical species of Lachesilla Westwood, in species group forcepeta (Psocodea: ‘ Psocoptera’: Lachesillidae), Zootaxa 4728 (1), pp. 49-62 : 50-61 50-61
Milichiella lacteipennis     Brake, Irina, 2009, Revision of Milichiella Giglio-Tos (Diptera, Milichiidae) 2188, Zootaxa 2188 (1), pp. 1-166 : 84-94 84-94
Robustagramma biangulatum   sp. nov.  Marshall, Stephen A. & Cui, Yongsheng, 2005, Systematics of Robustagramma, a new genus of New World Sphaeroceridae (Diptera), Zootaxa 1026 (1), pp. 1-122 : 68-71 68-71
Coniceromyia diffusa   sp. nov.  Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 20-21 20-21
Coniceromyia pilipleura     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 48 48
Coniceromyia deltopoda   sp. nov.  Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 19-20 19-20
Monstera costaricensis     Croat, Thomas B., Cedeño-Fonseca, Marco & Ortiz, Orlando O., 2024, Revision of Monstera (Araceae: Monsteroideae) of Central America, Phytotaxa 656 (1), pp. 1-197 : 49-52 49-52
Cyphorhinus lawrencii subsp. infuscatus     LeCROY, M. A. R. Y., 2003, TYPE SPECIMENS OF BIRDS IN THE AMERICAN MUSEUM OF NATURAL HISTORY. PART 5. PASSERIFORMES: ALAUDIDAE, HIRUNDINIDAE, MOTACILLIDAE, CAMPEPHAGIDAE, PYCNONOTIDAE, IRENIDAE, LANIIDAE, VANGIDAE, BOMBYCILLIDAE, DULIDAE, CINCLIDAE, TROGLODYTIDAE, AND MIMIDAE, Bulletin of the American Museum of Natural History 278 (278), pp. 1-156 : 124 124
Neopleurophora prionotopyga   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 17 17
Coniceromyia impluvia     Ament, Danilo César & Amorim, Dalton De Souza, 2016, Taxonomic revision of Coniceromyia Borgmeier (Diptera: Phoridae), with the description of three new species from Brazil, Zootaxa 4086 (1), pp. 1-87 : 37 37
Macgrathphora caribbea   sp. nov.  Brown, Brian V., 2022, Two new genera of phorid flies, Macgrathphora and Aurisetiphora, from Costa Rica (Diptera: Phoridae), with recommendations for naming new genera in the family, Zootaxa 5115 (4), pp. 571-581 : 574-575 574-575
Meganannus lewisi   sp. nov.  Weirauch, Christiane, Whorrall, Kyle, Knyshov, Alexander & Hoey-Chamberlain, Rochelle, 2018, Giant among dwarfs: Meganannus lewisi, gen. n. and sp. n., a new genus and species of minute litter bugs from Costa Rica (Hemiptera: Schizopteridae), Zootaxa 4370 (2), pp. 156-170 : 163-165 163-165
Cheiloneurus numida   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 368-370 368-370
Rasopone cryptergates   sp. nov.  Longino, John T. & Branstetter, Michael G., 2020, Phylogenomic Species Delimitation, Taxonomy, and ‘ Bird Guide’ Identification for the Neotropical Ant Genus Rasopone (Hymenoptera: Formicidae), Insect Systematics and Diversity 4 (2), No. 1, pp. 1-33 : 22 22
Closterocerus tischeriae   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 76-77 76-77
Epimetopus rectus   sp. nov.  Perkins, Philip D., 2012, 3531, Zootaxa 3531, pp. 1-95 : 31 31
Cheiloneurus gyges   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 427-429 427-429
Orasema minutissima     Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 62-71 62-71
Orasema evansi   sp. nov.  Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 33-47 33-47
Miconia neomicrantha     Gamba, Diana & Almeda, Frank, 2014, Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America, Phytotaxa 179 (1), pp. 1-174 : 97-106 97-106
Grotiusomyia azofeifai   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 46 46
Azteca pittieri     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 43-45 43-45
Coccidencyrtus xero   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 103-105 103-105
Closterocerus flammeus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 48-49 48-49
Azteca velox     Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 50-52 50-52
Megalopinus adjectus     Puthz, V., 2012, Über die neuweltlichen Megalopinus-Arten (Coleoptera, Staphylinidae) (24. Beitrag zur Kenntnis der Megalopsidiinen), Linzer biologische Beiträge 44 (1), pp. 613-834 : 639-641 639-641
Selymbria pluvialis     Sanborn, Allen F., 2019, The cicada genus Selymbria Stål, 1861 (Hemiptera: Cicadidae: Tibicininae: Selymbrini): redescription including ten new species and a key to the genus, Zootaxa 4614 (3), pp. 401-448 : 441 441
Cobacella palmensis   sp. nov.  Zumbado Echavarria, Marco A., Barrantes Barrantes, Edwin A., Helmic, Ericka E., Bartlett, Charles R. & Bahder, Brian W., 2023, A newspecies ofplanthopper in thegenus Cobacella (Hemiptera: Auchenorrhyncha Derbidae) from oil palm (Elaeis guineensis) in Costa Rica, Zootaxa 5351 (1), pp. 107-121 : 111-119 111-119
Oxytrigona pallida   sp. nov.  Lepeco, Anderson, 2024, Contribution to the taxonomy of Oxytrigona Cockerell, 1917 (Apidae, Meliponini), Zootaxa 5506 (3), pp. 369-395 : 382-386 382-386
Mischocyttarus chalucas     Silveira, Orlando Tobias, Silva, Suzanna de Sousa & Felizardo, Sherlem Patricia de Seixas, 2015, Notes on social wasps of the group of Mischocyttarus (Omega) punctatus (Ducke), with description of six new species (Hymenoptera, Vespidae, Polistinae), Revista Brasileira de Entomologia 59 (3), pp. 154-168 : 160-161 160-161
Hydrochus biexcavatus   sp. nov.  Perkins, Philip D., 2021, Taxonomy of Central American water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrochidae), Zootaxa 4974 (3), pp. 459-503 : 466-467 466-467
Cyclocaccus monticola     Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870 825-870
Gasteruption brasiliense     Macedo, Antonio Carlos Cruz, 2011, A revision of Gasteruption Latreille (Hymenoptera: Gasteruptiidae) in the Neotropical Region 3030, Zootaxa 3030 (1), pp. 1-62 : 22-26 22-26
Melaniphax suffusculus   sp. nov.  Bartlett, Charles R., 2019, A New Genus and Species of Delphacidae (Hemiptera: Fulgoroidea: Delphacidae) from Costa Rica, Zootaxa 4657 (2), pp. 361-368 : 363-366 363-366
Cyclocaccus clinei   sp. nov.  Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870 825-870
Neolindus retusus     Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 72 72
Majeorona truncata     Sanborn, Allen F., 2014, Checklist of the cicadas (Insecta: Hemiptera: Cicadidae) of Costa Rica including new records for fourteen species, Check List 10 (2), pp. 33-39 : 247 247
Heterospilus richardsi     Onody, Helena C., Kawada, Ricardo & Brandão, Carlos Roberto F., 2014, Type specimens of Hymenoptera deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil (excluding Aculeata), Papéis Avulsos de Zoologia (São Paulo) 54 (27), pp. 391-402 : 399 399
Osoriellus micros   comb. nov.  Irmler, Ulrich, 2014, The Neotropical species of the genus Osoriellus FAGEL, 1959 (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 64 (2), pp. 231-354 : 278-279 278-279
Metaleptobasis foreli     Ellenrieder, Natalia Von, 2013, <p> <strong> A revision of <em> Metaleptobasis </ em> Calvert (Odonata: Coenagrionidae) with seven synonymies and the description of eighteen new species from South America </ strong> </ p>, Zootaxa 3738 (1), pp. 1-155 : 35-37 35-37
Metaleptobasis bovilla     Ellenrieder, Natalia Von, 2013, <p> <strong> A revision of <em> Metaleptobasis </ em> Calvert (Odonata: Coenagrionidae) with seven synonymies and the description of eighteen new species from South America </ strong> </ p>, Zootaxa 3738 (1), pp. 1-155 : 22-24 22-24
Thecomyia chrysacra     Mortelmans, Jonas & Pollet, Marc, 2018, New data and species of Thecomyia Perty, 1833 (Diptera: Sciomyzidae) from Mitaraka (French Guiana), with notes on the genus, Zoosystema 40 (17), pp. 415-423 : 420 420
Thecomyia lateralis     Mortelmans, Jonas & Pollet, Marc, 2018, New data and species of Thecomyia Perty, 1833 (Diptera: Sciomyzidae) from Mitaraka (French Guiana), with notes on the genus, Zoosystema 40 (17), pp. 415-423 : 420 420
Diglyphomorphomyia parva   sp. nov.  Hansson, Christer, 2022, Diglyphomorphomyia Girault (Chalcidoidea: Eulophidae) new to the Neotropical region including nine new species, Zootaxa 5141 (4), pp. 321-340 : 330-332 330-332
Cheiloneurus herxius   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 304-307 304-307
Neolindus punctogularis     Guzman, Yoan Camilo, Tokareva, Alexandra, Koszela, Katarzyna & Żyła, Dagmara, 2024, Twenty-one new species of the Neotropical rove beetle genus Neolindus Scheerpeltz (Coleoptera, Staphylinidae, Paederinae), European Journal of Taxonomy 942, pp. 1-76 : 72 72
Lutnes testaceus   comb. nov.  Gibson, Gary A. P., 2018, Revision of Lutnes Cameron (Hymenoptera: Eupelmidae), Zootaxa 4415 (2), pp. 330-356 : 350-355 350-355
Prodilis lola   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 95-96 95-96
Daidalotarsonemus maryae     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 97 97
Ficus plectonervata   sp. nov.  Medina, Nicolás, 2014, Three new species of Ficus (Moraceae) from Central and northern-South America, Phytotaxa 188 (1), pp. 21-30 : 26-27 26-27
Leptochromus laselva   sp. nov.  Lord, Nathan P., Carlton, Christopher E. & Leschen, Richard A. B., 2014, A New Species ofLeptochromusMotschulsky (Coleoptera: Staphylinidae: Scydmaeninae) from Costa Rica, with Notes on Morphology and Natural History, The Coleopterists Bulletin 68 (1), pp. 119-125 : 119-125 119-125
Lasioseius serripes   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 74-83 74-83
Dohrniphora parvipala   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 111 111
Stenoeurilla herediana   sp. nov.  Brailovsky, Harry & Barrera, Ernesto, 2019, A revision of the Costa Rican species of Stenoeurilla Brailovsky & Barrera (Hemiptera: Heteroptera: Coreidae: Stenoscelideini), with the description of two new species, new distributional records, synonymical note, and key to the known species, Zootaxa 4550 (4), pp. 545-556 : 547-552 547-552
Deltometopus bicolor   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 30-31 30-31
Schizoptera (Odontorhagus) dolosa   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 268-269 268-269
Cyclocaccus stonyx   sp. nov.  Hisamatsu, Sadatomo, Bayless, Victoria M. & Carlton, Christopher E., 2016, Revision ofCyclocaccusSharp (Coleoptera: Nitidulidae: Nitidulinae), The Coleopterists Bulletin 70 (4), pp. 825-870 : 825-870 825-870
Azteca flavigaster   new species  Longino, J. T., 2007, A taxonomic review of the genus Azteca (Hymenoptera: Formicidae) in Costa Rica and a global revision of the aurita group., Zootaxa 1491, pp. 1-63 : 30-31 30-31
Edessa fuscolimbata   sp. nov.  Bitar, Murilo Victor Silva, Mendonça, Maria Thayane Da Silva & Fernandes, José Antônio Marin, 2023, Description of seven new species of Edessa Fabricius, 1803 from Central America (Heteroptera, Pentatomidae, Edessinae), Zootaxa 5278 (3), pp. 578-600 : 586-588 586-588
Trechnites spondes   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 575-576 575-576
Crematogaster wardi   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 123-125 123-125
Melaloncha laselvae   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 31-32 31-32
Dohrniphora commina   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 105 105
Coccidencyrtus aries   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 89-91 89-91
Dohrniphora porrasae   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 51-52 51-52
Temnocerus rostralis   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 35-36 35-36
Ancistroceroides soikai   sp. nov.  Grandinete, Yuri Campanholo, Noll, Fernando Barbosa & Carpenter, James, 2016, Three new species of tribe Odynerini (Hymenoptera, Vespidae, Eumeninae) from the Neotropical Region, Zootaxa 4162 (2), pp. 391-400 : 392-394 392-394
Cosmorrhyncha albistrigulana   sp. nov.  Brown, John W., Razowski, Józef & Timm, Alicia E., 2020, Revision of New World Cosmorrhyncha Meyrick, 1913 (Lepidoptera: Tortricidae: Olethreutinae), with descriptions of five new species, Insecta Mundi 753, pp. 1-21 : 13-14 13-14
Daidalotarsonemus lini     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 89 89
Succinctonotum frosti   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 50-51 50-51
Cenophengus niger     Vega-Badillo, Viridiana, Morrone, Juan J. & Zaragoza-Caballero, Santiago, 2021, Revision of the genus Cenophengus LeConte, 1881 (Coleoptera, Phengodidae), with the description of four new species, new geographic records and a new synonymy, ZooKeys 1068, pp. 73-148 : 73 73
Lasioseius fuscina   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 83-87 83-87
Crematogaster sotobosque   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 106-109 106-109
Galeopsomyia hiata   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 330-331 330-331
Pristaulacus maculatus     Smith, David R., 2008, Aulacidae of the southwestern United States, Mexico, and Central America (Hymenoptera), Beiträge Zur Entomologie = Contributions to Entomology 58 (2), pp. 267-355 : 298-300 298-300
Osbornellus compressus     Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 89 89
Lasioseius duobtusisetis   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 88-93 88-93
Elasmarion longipes   sp. nov.  Hansson, Christer, 2020, Two new Eulophinae genera (Chalcidoidea: Eulophidae) from the Neotropical region, Zootaxa 4877 (1), pp. 185-194 : 187-189 187-189
Crematogaster flavomicrops   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 68-70 68-70
Prochiloneurus thonus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 482-485 482-485
Megalota vulgaris   sp. nov.  Brown, John W., 2009, The discovery of Megalota in the Neotropics, with a revision of the New World species (Lepidoptera: Tortricidae: Olethreutini), Zootaxa 2279 (1), pp. 1-50 : 12-14 12-14
Cryptopone guianensis     Fernandes, Io & Delabie, Jhc, 2019, A New Species of Cryptopone Emery (Hymenoptera: Formicidae: Ponerinae) from Brazil with Observations on the Genus and a Key for New Word Species, Sociobiology 66 (3), pp. 408-413 : 410 410
Maelodrus costaricensis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 14-15 14-15
Neopleurophora costaricana   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 46-48 46-48
Neopleurophora tanytarsus   sp. nov.  Ament, Danilo Cesar & Amorim, Dalton De Souza, 2013, Taxonomic revision of the genus Neopleurophora Brown (Diptera: Phoridae), with the description of thirty seven new species, Zootaxa 3657 (1), pp. 1-93 : 23-24 23-24
Dohrniphora rinconensis   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 44-45 44-45
Cheiloneurus onestas   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 259-261 259-261
Cheiloneurus finator   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 415-417 415-417
Closterocerus oligothrix   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 65-66 65-66
Embates marchionis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Adelothyreus totus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 9-10 9-10
Quichuamyia aplanatantennae   sp. nov.  Brammer, Colin A., 2005, Quichuamyia, a new Neotropical genus of Stratiomyidae (Insecta: Diptera), Zootaxa 990 (1), pp. 1-14 : 3-9 3-9
Cyrtocapsus glabratus   sp. nov.  Henry, Thomas J., 2022, Revision of the New World Plant Bug Genus Cyrtocapsus (Heteroptera: Miridae Bryocorinae: Eccritotarsini), with New and Revised Synonymies, Lectotype Designations, and Descriptions of 12 New Species, Zootaxa 5154 (1), pp. 1-48 : 20 20
Xyleborinus volvulus     Bright, Donald E., 2014, A Catalog of Scolytidae and Platypodidae (Coleoptera), Supplement 3 (2000 - 2010), with notes on subfamily and tribal reclassifications, Insecta Mundi 2014 (356), pp. 1-336 : 282 282
Mesembrinella flavicrura     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 124-125 124-125
Closterocerus azofeifai   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 27-28 27-28
Neaporia cassandra   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 28-29 28-29
Daidalotarsonemus     Araújo, Marcel Santos De & Feres, Reinaldo José Fazzio, 2019, Catalog of the mite (Acari) type specimens deposited at the “ Universidade Estadual Paulista (UNESP), Campus de São José do Rio Preto ”, São Paulo, Brazil (DZSJRP), Zootaxa 4700 (4), pp. 557-583 : 570-571 570-571
Daidalotarsonemus bauchani     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 24 24
Megalomyrmex wettereri   sp. nov.  Brandão, Carlos Roberto F., 2003, Further Revisionary Studies On The Ant Genus Megalomyrmex Forel (Hymenoptera: Formicidae: Myrmicinae: Solenopsidini) C R F. B Abstract, Papéis Avulsos de Zoologia (São Paulo) 43 (8), pp. 145-159 : 155-157 155-157
Khamul erwini   sp. nov.  Gates, M. W., 2008, Description of Khamul, gen. n. (Hymenoptera: Chalcidoidea: Eurytomidae), with a hypothesis of its phylogenetic placement, Zootaxa 1898 (1), pp. 1-33 : 27-29 27-29
Trachymyrmex isthmicus     Mayhé-Nunes, A. J. & Brandão, C. R. F., 2007, Revisionary studies on the attine ant genus Trachymyrmex Forel. Part 3: The Jamaicensis group (Hymenoptera: Formicidae)., Zootaxa 1444, pp. 1-21 : 8-11 8-11
Lithocharodes fusciventris     Irmler, Ulrich, 2021, The Neotropical species of the genus Lithocharodes SHARP, 1876 (Coleoptera: Staphylinidae: Staphylininae: Xantholinini), Beiträge Zur Entomologie = Contributions to Entomology 71 (1), pp. 29-85 : 45-46 45-46
Xyleborus rugulosipes     Bright, Donald E., 2014, A Catalog of Scolytidae and Platypodidae (Coleoptera), Supplement 3 (2000 - 2010), with notes on subfamily and tribal reclassifications, Insecta Mundi 2014 (356), pp. 1-336 : 209-210 209-210
Bohayella geraldinae     Kang, Ilgoo, 2022, Bohayella rodrigodiazi sp. nov.: a new species from Ecuador with an updated key to the New World species of Bohayella Belokobylskij (Hymenoptera, Braconidae, Cardiochilinae), Journal of Hymenoptera Research 89, pp. 1-8 : 1 1
Blackburneus laxepunctatus     Dellacasa, Marco, Dellacasa, Giovanni & Gordon, Robert D., 2011, Systematic revision of the American taxa belonging to the genera Alloblackburneus Bordat, 2009, and Blackburneus Schmidt, 1913, with description of seven new species (Coleoptera: Scarabaeidae: Aphodiinae), Insecta Mundi 2011 (204), pp. 1-52 : 26-27 26-27
Grotiusomyia phalaros   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 54-55 54-55
Osorius canaliculatus     Irmler, Ulrich, 2010, The Neotropical species of the genus Osorius G - M, 1829 with remarks to the Neotropical Osoriid complex (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 60 (2), pp. 363-426 : 380-381 380-381
Eucosmophora pouteriae     Prins, Jurate De, Brito, Rosângela & Moreira, Gilson Rudinei Pires, 2016, An annotated taxonomic checklist of the Neotropical Gracillariidae (Lepidoptera) with links to the information on host plants and parasitoids, Zootaxa 4158 (1), pp. 1-51 : 24 24
Euhylaeogena byattae   sp. nov.  Hespenheide, Henry A., 2014, A Reconsideration ofHylaeogenaObenberger, 1923 (Coleoptera: Buprestidae), with Descriptions of a New Genus and New Species from Mexico and Central America, The Coleopterists Bulletin 68 (1), pp. 21-30 : 26-27 26-27
Daidalotarsonemus azofeifai     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 17-24 17-24
Schizoptera (Odontorhagus) simpla   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 279-280 279-280
Dyscolotaxia championi     Otto, Robert L., 2023, A revision of Dyscolotaxia Horn, 1890 (Coleoptera: Eucnemidae: Macraulacinae: Macraulacini), with the description of Amazotaxia new genus from South America, Insecta Mundi 2023 (21), pp. 1-15 : 4-6 4-6
Galeopsomyia nitida   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 415-416 415-416
Coniceromyia stichochaeta   sp. nov.  Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 46 46
Closterocerus deltoides   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 45-46 45-46
Eranina cretaria     Groll, Elisa Von, 2017, Catalogue of Coleoptera type specimens housed in the collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4318 (3), pp. 439-473 : 454 454
Coccidencyrtus sivan   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 109-110 109-110
Orasema woolleyi   sp. nov.  Burks, Roger A., Heraty, John M., Dominguez, Chrysalyn & Mottern, Jason L., 2018, Complex diversity in a mainly tropical group of ant parasitoids: Revision of the Orasema stramineipes species group (Hymenoptera: Chalcidoidea: Eucharitidae), Zootaxa 4401 (1), pp. 1-107 : 97-99 97-99
Dissomphalus punctatus     Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 28-29 28-29
Charterginus nevermanni     Somavilla, Alexandre, Aragão, Marcos, Barroso, Paulo Cézar Salgado, Menezes, Rodolpho Santos Telles & Carpenter, James M., 2023, Taxonomic notes on the genus Charterginus Fox, 1898 (Vespidae: Polistinae: Epiponini) with images of the type specimens and new occurrence records, Zootaxa 5353 (2), pp. 143-152 : 147 147
Dromaeolus brunneus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 25-27 25-27
Macreupelmus dromedarius     Gibson, Gary A. P., 2016, Revision of the Neotropical genus Macreupelmus Ashmead (Hymenoptera: Chalcidoidea: Eupelmidae), Zootaxa 4161 (1), pp. 81-115 : 99-101 99-101
Plagiocephalus latifrons     Vasconcelos, Ana Caroline O., Wendt, Lisiane D. & de Carvalho, Claudio J. B., 2019, Taxonomic revision of the Neotropical stalk-eyed fly Plagiocephalus Wiedemann (Diptera, Ulidiidae, Ulidiinae), Revista Brasileira de Entomologia 63 (1), pp. 80-90 : 86-88 86-88
Adelius pentagonalis   sp. nov.  Shimbori, Eduardo M., Bortoni, Marco A., Shaw, Scott R., Souza-Gessner, Carolina Da S., Cerântola, Paula De C. M. & Penteado-Dias, Angélica M., 2019, Revision of the New World genera Adelius Haliday and Paradelius de Saeger (Hymenoptera: Braconidae: Cheloninae: Adeliini), Zootaxa 4571 (2), pp. 151-200 : 185-187 185-187
Temnocerus herediensis   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 21-23 21-23
Pedinotus variegatus     Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 97-100 97-100
Dromaeolus holdridgei   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 28-29 28-29
Cheiloneurus pherus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 356-358 356-358
Dissomphalus krombeini     Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 20-22 20-22
Myrmelachista mexicana     Longino, J. T., 2006, A taxonomic review of the genus Myrmelachista (Hymenoptera: Formicidae) in Costa Rica., Zootaxa 1141, pp. 1-54 : 39-40 39-40
Melaloncha striatula     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 63-64 63-64
Adelomyrmex     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 177-178 177-178
Grotiusomyia albiclava   sp. nov.  Hansson, Christer, 2023, Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species, Zootaxa 5278 (1), pp. 39-77 : 43-44 43-44
Eleusis nigerrima     Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 286-287 286-287
Stegnoclava zorropsis   sp. nov.  Opitz, Weston, 2010, Classification, Natural History, and Evolution of the Epiphloeinae (Coleoptera: Cleridae). Part VIII. The Genera Acanthocollum Opitz, Stegnoclava Opitz, and Ichnea Laporte, The Coleopterists Bulletin (mo 9) 64, pp. 1-65 : 17 17
Embates maculifer   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151
Opilioseius grallator     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Fungiseius armatus     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Spadiseius spathiphyllae     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Spadiseius calyptrogynae     LIU, DONG, YI, TIAN-CI, XU, YUN & ZHANG, ZHI-QIANG, 2013, Hotspots of new species discovery: new mite species described during 2007 to 2012, Zootaxa 3663 (1), pp. 1-102 : 32 32
Neaporia irma   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 14-15 14-15
Daidalotarsonemus alas     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 10 10
Dromaeolus americanus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 24-25 24-25
Athis analibiae     García-Díaz, José De Jesús, Espinoza-Sanabria, Bernardo A., Worthy, Robert, González, Jorge M., Janzen, Daniel H. & Hallwachs, Winnie, 2024, Synopsis of the Castniidae (Lepidoptera) of Costa Rica, Zootaxa 5481 (2), pp. 151-202 : 200 200
Osbornellus nielsoni   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 97 97
Sesioctonus longinoi   sp. nov.  Briceño, Michael J. Sharkey Rosa A., 2005, Review of Sesioctonus Viereck (Hymenoptera: Braconidae: Agathidinae) from Colombia with descriptions of five new species, Zootaxa 1002 (1002), pp. 45-58 : 49-52 49-52
Pedinotus rojasi     Belokobylskij, Sergey A., Castro, Clóvis Sormus De, Shimbori, Eduardo Mitio, Zaldívar-Riverón, Alejandro, Penteado-Dias, Angélica Maria & Braet, Yves, 2017, Taxonomic revision of the Neotropical species of the braconid wasp genus Pedinotus Szépligeti, 1902 (Hymenoptera: Braconidae: Doryctinae), Zootaxa 4327 (1), pp. 1-102 : 83-85 83-85
Melaloncha crinita   sp. nov.  Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 47 47
Costarina selva   sp. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, The Goblin Spider Genus Costarina (Araneae, Oonopidae), Part 2: the Costa Rican fauna, American Museum Novitates 2014 (3794), pp. 1-76 : 8 8
Neaporia dianne   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 35-36 35-36
Trechnites kale   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 573-575 573-575
Syringogaster rufa     Marshall, S. A., Buck, M., Skevington, J. H. & Grimaldi, D., 2009, A revision of the family Syringogastridae (Diptera: Diopsoidea), Zootaxa 1996 (1), pp. 1-80 : 59-62 59-62
Protopolybia picteti     Dos Santos Junior, José N. A., Silveira, Orlando T. & Carpenter, James M., 2020, Taxonomic revision of the Protopolybia picteti - emortualis species-group (Richards 1978), with descriptions of two new species (Hymenoptera: Vespidae, Polistinae), Zootaxa 4729 (2), pp. 228-248 : 240-244 240-244
Galeopsomyia liosa   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 128-129 128-129
Acanthaegilips dentis   sp. nov.  Ros-Farré, Palmira, Sporrong, Michael, Ronquist, Fredrik & Pujade-Villar, Juli, 2003, Revision Of The Neotropical Anacharitinae Genus Acanthaegilips (Hym., Cynipoidea, Figitidae), Papéis Avulsos de Zoologia 43 (2), pp. 11-30 : 20-21 20-21
Galeopsomyia crotonae   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 287-289 287-289
Cheiloneurus mirabel   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 262-263 262-263
Prodilis maryann   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 92-93 92-93
Cheiloneurus parnisa   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 361-363 361-363
Daidalotarsonemus marini     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 97 97
Lasioseius cassidini   sp. nov.  Moraza, Maria L. & Lindquist, Evert E., 2018, A new species-group with new species of the genus Lasioseius (Acari: Mesostigmata: Blattisociidae) associated with Neotropical hispine beetles in furled leaves ofHeliconia, Acarologia 58 (1), pp. 62-98 : 69-74 69-74
Galeopsomyia adobia   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 212-213 212-213
Spalangia stictocyla   sp. nov.  Gibson, Gary A. P., 2009, 2259, Zootaxa 2259, pp. 1-159 : 146-148 146-148
Osbornellus fuentesi   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 52-54 52-54
Quirsfeldia stethonoides   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 11 11
Temnocerus niger   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 26 26
Neaporia kristina   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 15-16 15-16
Daidalotarsonemus cuadradus     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 41 41
Cyrtocapsus metafemoratus   sp. nov.  Henry, Thomas J., 2022, Revision of the New World Plant Bug Genus Cyrtocapsus (Heteroptera: Miridae Bryocorinae: Eccritotarsini), with New and Revised Synonymies, Lectotype Designations, and Descriptions of 12 New Species, Zootaxa 5154 (1), pp. 1-48 : 29 29
Dromaeolus herediensis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 27-28 27-28
Adelothyreus costaricensis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 8-9 8-9
Mesembrinella socors     Whitworth, Terry L. & Yusseff-Vanegas, Sohath, 2019, A revision of the genera and species of the Neotropical family Mesembrinellidae (Diptera: Oestroidea), Zootaxa 4659 (1), pp. 1-146 : 133-134 133-134
Protyndarichoides damocles   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 545-546 545-546
Onichodon confluentus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 16-17 16-17
Melaloncha maculata     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 58-59 58-59
Aphestia fisheri   sp. nov.  Camargo, Alexssandro, Vieira, Rodrigo & Rafael, José Albertino, 2024, Taxonomic review of Aphestia Schiner, 1866 (Diptera: Asilidae: Laphriinae) with description of seven new species, Zootaxa 5436 (1), pp. 1-80 : 40-44 40-44
Daidalotarsonemus ginae     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 70-71 70-71
Neococcidencyrtus cyclope   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 132-133 132-133
Schizoptera (Odontorhagus) quasicompleta   sp. nov.  Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284 : 274-275 274-275
Pseudestoloides costaricensis     Santos-Silva, Antonio, Wappes, James E. & Galileo, Maria Helena M., 2018, Descriptions and synonymies in American Desmiphorini (Coleoptera, Cerambycidae, Lamiinae), Zootaxa 4375 (4), pp. 451-501 : 458 458
Galeopsomyia aspratilis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 482-483 482-483
Closterocerus noyesi   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 64-65 64-65
Octostruma     Ulysséa, Mônica Antunes, Prado, Lívia P. & Brandão, Carlos Roberto F., 2015, Type specimens of the traditional Myrmicinae (Hymenoptera: Formicidae) ant tribes deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil: Adelomyrmecini, Basicerotini, Blepharidatt ini, Crematogastrini, Formicoxenini, Lenomyrmecini, Myrmicini, Phalacromyrmecini, Pheidolini, Stegomyrmecini, Stenammini and Tetramoriini, Papéis Avulsos de Zoologia (São Paulo) 55 (12), pp. 175-204 : 180-181 180-181
Ichnea frenata     Opitz, Weston, 2010, Classification, Natural History, and Evolution of the Epiphloeinae (Coleoptera: Cleridae). Part VIII. The Genera Acanthocollum Opitz, Stegnoclava Opitz, and Ichnea Laporte, The Coleopterists Bulletin (mo 9) 64, pp. 1-65 : 42-45 42-45
Galeopsomyia lealis   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 354-355 354-355
Crematogaster bryophilia   NEW SPECIES  Longino, J. T., 2003, The Crematogaster (Hymenoptera, Formicidae, Myrmicinae) of Costa Rica., Zootaxa 151, pp. 1-150 : 41-44 41-44
Tectaria moranii   sp. nov.  Tang, Guang-Da & Zhang, Li-Bing, 2018, Tectaria moranii (Tectariaceae), a new fern species from Costa Rica, Phytotaxa 357 (3), pp. 230-234 : 230-232 230-232
Osbornellus maesi   sp. nov.  Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 49-51 49-51
Cheiloneurus nebucha   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 455-457 455-457
Onichodon rufus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 17-18 17-18
Eranina cretaria   comb. nov.  MONNÉ, MIGUEL A., 2006, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part III. Subfamilies Parandrinae, Prioninae, Anoplodermatinae, Aseminae Spondylidinae, Lepturinae, Oxypeltinae, and addenda to the Cerambycinae and Lamiinae,, Zootaxa 1212 (1), pp. 1-244 : 183 183
Coniceromyia broadheadi     Ament, Danilo César, Kung, Giar-Ann & Brown, Brian V., 2020, Forty-one new species of Coniceromyia Borgmeier (Diptera: Phoridae), an identification key, and new distributional records for the species of the genus, Zootaxa 4830 (1), pp. 1-61 : 55 55
Pelopsis baloghi   sp. nov.  Behan-Pelletier, V., Eamer, B. & K. W, 2003, Redefinition Of Pelopsis (Acari: Oribatida: Mycobatidae), With Description Of Pelopsis Baloghi Sp. N. From Costa Rica, Acta Zoologica Academiae Scientiarum Hungaricae 49 (1), pp. 5-15 : 10-14 10-14
Blepharoneura cornelli   sp. nov.  Norrbom, Allen L. & Condon, Marty, 2010, Revision of the femoralis group of Blepharoneura Loew (Diptera: Tephritidae) 2374, Zootaxa 2374 (1), pp. 1-139 : 59-60 59-60
Dissomphalus guttus   sp. nov.  Azevedo, C. O., 2003, Synopsis of the Neotropical Dissomphalus (Hymenoptera, Bethylidae), Zootaxa 338 (1), pp. 1-74 : 49-50 49-50
Lindsaea mesoamericana   sp. nov.  Rojas-Alvarado, Alexander Francisco & Tejero-Díez, José Daniel, 2017, Novelties and notes in Lindsaea (Lindsaeaceae) from Mexico and Central America, Phytotaxa 296 (2), pp. 147-160 : 152-157 152-157
Closterocerus altamiraensis   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 18-19 18-19
Neaporia lena   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 21-22 21-22
Ponsoonops viejo   sp. nov.  Bolzern, Angelo, 2014, The Neotropical goblin spiders of the new genera Ponsoonops and Bipoonops (Araneae, Oonopidae), American Museum Novitates 2014 (3803), pp. 1-1 : 1--1 1--1
Cheiloneurus genua   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 329-331 329-331
Eucosmophora ingae     Prins, Jurate De, Brito, Rosângela & Moreira, Gilson Rudinei Pires, 2016, An annotated taxonomic checklist of the Neotropical Gracillariidae (Lepidoptera) with links to the information on host plants and parasitoids, Zootaxa 4158 (1), pp. 1-51 : 23 23
Osorius costaricensis     Irmler, Ulrich, 2010, The Neotropical species of the genus Osorius G - M, 1829 with remarks to the Neotropical Osoriid complex (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 60 (2), pp. 363-426 : 383-384 383-384
Osbornellus anonae     Domínguez, Edwin & Godoy, Carolina, 2010, Taxonomic review of the genus Osbornellus Ball (Hemiptera: Cicadellidae) in Central America 2702, Zootaxa 2702, pp. 1-106 : 33 33
Daidalotarsonemus serratus     Rezende, José Marcos, Bauchan, Gary, Lin, Jian-Zhen, Ochoa, Ronald & Lofego, Antonio Carlos, 2024, Review of the genus Daidalotarsonemus De Leon (Acari: Prostigmata: Tarsonemidae), Zootaxa 5426 (1), pp. 1-170 : 124 124
Temnocerus salvensis   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 37-38 37-38
Diochus nanus     Irmler, Ulrich, 2017, A review of the Neotropical genus Diochus ERICHSON, 1840 (Coleoptera: Staphylinidae: Staphylininae), Beiträge Zur Entomologie = Contributions to Entomology 67 (1), pp. 1-62 : 35-38 35-38
Hexapopha reimoseri   comb. nov.  Platnick, Norman I., Berniker, Lily & Víquez, Carlos, 2014, A New Goblin Spider Genus of the Zyngoonops Group from Costa Rica, With Notes on Coxapopha (Araneae, Oonopidae), American Museum Novitates 2014 (3820), pp. 1-1 : 1--1 1--1
Cheiloneurus letos   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 410-413 410-413
Homalopoda beatriz   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 65-67 65-67
Eleusis rufula     Irmler, Ulrich, 2017, The Neotropical species of the genus Eleusis LAPORTE, 1835 with description of the new genus Eleusima (Coleoptera: Staphylinidae: Osoriinae), Beiträge Zur Entomologie = Contributions to Entomology 67 (2), pp. 275-318 : 300-301 300-301
Prochiloneurus lenus   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 475-477 475-477
Prodilis joanna   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 90 90
Melaloncha digitalis     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 17-18 17-18
Neaporia sonia   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 39-40 39-40
Closterocerus apiculus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 22-23 22-23
Closterocerus lineatus   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 58-59 58-59
Galeopsomyia alloris   sp.nov.  Hansson, Christer & Hanson, Paul E., 2023, EULOPHIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 5: The genus Galeopsomyia Girault, Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 3 (1), pp. 1-743 : 222-223 222-223
Temnocerus minutus   sp. nov.  Hamilton, R. W., 2010, Central American Temnocerus Thunberg, 1815 (Coleoptera: Rhynchitidae), Insecta Mundi 2010 (128), pp. 1-42 : 25-26 25-26
Isarthrus striatus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 18-20 18-20
Paragrallomyia pseudoalbibasis   sp. nov.  Ferro, Gustavo Borges & Marshall, Stephen A., 2020, A redefinition of Paragrallomyia Hendel (Diptera: Micropezidae, Taeniapterinae) and a revision of the P. albibasis complex, Zootaxa 4822 (1), pp. 39-70 : 58-60 58-60
Coccidencyrtus chenoa   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 96-97 96-97
Eranina costaricensis     Groll, Elisa Von, 2017, Catalogue of Coleoptera type specimens housed in the collection of the Museu de Ciências Naturais, Fundação Zoobotânica do Rio Grande do Sul, Brazil, Zootaxa 4318 (3), pp. 439-473 : 453 453
Neaporia christy   sp. nov.  Gordon, Robert D. & Hanley, Guy A., 2017, South American Coccinellidae (Coleoptera), Part XVII: systematic revision of Western Hemisphere Cephaloscymnini (Coccinellinae) with description of a cryptic new genus and species of Coccidulini (Coccinellinae), Insecta Mundi 2017 (601), pp. 1-158 : 22 22
Absensiugum brunneum   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 21-22 21-22
Adelothyreus brevis   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 7-8 7-8
Cheiloneurus semis   sp. nov.  Noyes, John Stuart, 2023, ENCYRTIDAE OF COSTA RICA (HYMENOPTERA: CHALCIDOIDEA), 4 Subfamily Encyrtinae: tribes Arrhenophagini, Habrolepidini, Cerapterocerini, Cheiloneurini, Trechnitini, Cercobelini, Polaszekiini, Protyndarichoidini, Gahaniellini and Syrphophagini (part), mainly primary parasitoids and hyperparasitoids of Coccoidea and Psylloidea (Hemiptera), Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 2 (11), pp. 1-921 : 235-237 235-237
Melaloncha stylata     Brown, Brian V., 2006, Revision of the untreated taxa of Melaloncha s. s. bee-killing flies (Diptera: Phoridae), Zootaxa 1280 (1), pp. 1-68 : 42 42
Austroearinus chrysokeras   sp. nov.  Sharkey, Michael, 2006, Two new genera of Agathidinae (Hymenoptera: Braconidae) with a key to the genera of the New World, Zootaxa 1185, pp. 37-51 : 47-51 47-51
Lacus pectinatus   sp. nov.  Otto, Robert L., Muona, Jyrki & Córdoba-Alfaro, Jim, 2023, A new genus and sixteen new species of false click beetles (Coleoptera: Eucnemidae) described from the Heredia Province of Costa Rica with several additional records from the Osa Peninsula and Panama, Insecta Mundi 2023 (991), pp. 1-36 : 12-14 12-14
Dohrniphora heliconiae   sp. nov.  Brown, Brian V. & Kung, Giar-Ann, 2010, 2699, Zootaxa 2699, pp. 1-142 : 68 68
Closterocerus brevipes   sp.nov.  Hansson, Christer, 2022, Eulophidae Of Costa Rica (Hymenoptera: Chalcidoidea), 4 The Genus Closterocerus Westwood S. Str., Taxonomic Monographs on Neotropical Hymenoptera (Oxford, England) 1 (1), pp. 1-137 : 30-31 30-31
Trachymyrmex zeteki     Mayhé-Nunes, A. J. & Brandão, C. R. F., 2007, Revisionary studies on the attine ant genus Trachymyrmex Forel. Part 3: The Jamaicensis group (Hymenoptera: Formicidae)., Zootaxa 1444, pp. 1-21 : 16-20 16-20
Embates gracilis   sp. nov.  Prena, Jens, 2005, The Middle American species of Embates Chevrolat (Coleoptera: Curculionidae: Baridinae), Zootaxa 1100 (1), pp. 1-151 : 1-151 1-151

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