-84.833336, 10.3: 10 Treatments

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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
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
Epimetopus latilobus   sp. nov.  Perkins, Philip D., 2012, 3531, Zootaxa 3531, pp. 1-95 : 31-32 31-32
Azteca longiceps     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 : 37-38 37-38
Hydrangea albostellata   sp. nov.  Samain, Marie-Stéphanie, Najarro, Francisco Hernández & Salas, Esteban Manuel Martínez, 2014, First record of the critically endangered Hydrangea steyermarkii Standl. (Hydrangeaceae) in Mexico, and description of a new widespread Hydrangea species of Mesoamerica, Phytotaxa 162 (4), pp. 181-197 : 183-190 183-190
Dissomphalus boriae   sp. nov.  De Brito, Chirlei D. & Azevedo, Celso O., 2024, Revision of the punctatus species-group of Dissomphalus Ashmead (Hymenoptera, Bethylidae), Zootaxa 5536 (3), pp. 389-431 : 405-406 405-406
Gigantea montana     Boll, Piter Kehoma & Luna, Manuel De, 2025, Diversity of land planarians (Platyhelminthes: Tricladida: Geoplanidae) in Central America: annotated checklist with new records of native and introduced species from citizen science, Zootaxa 5695 (1), pp. 1-70 : 21 21
Rasopone costaricensis   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 : 11-22 11-22
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
Gigantea picadoi     Boll, Piter Kehoma & Luna, Manuel De, 2025, Diversity of land planarians (Platyhelminthes: Tricladida: Geoplanidae) in Central America: annotated checklist with new records of native and introduced species from citizen science, Zootaxa 5695 (1), pp. 1-70 : 23-25 23-25