Dasmeusa rafaeli Pecly, Takiya, Cavichioli & Mejdalani, 2023

Pecly, Nathalia H., Takiya, Daniela M., Cavichioli, Rodney R. & Mejdalani, Gabriel, 2023, Taxonomic revision and phylogeny of the sharpshooter genus Dasmeusa Melichar, 1926, with a scanning electron microscopy study of D. pauperata (Fabricius, 1803) (Hemiptera: Cicadellidae: Cicadellini), Arthropod Systematics & amp; Phylogeny 81, pp. 655-687 : 655

3.1.4.8. Dasmeusa rafaeli Pecly, Takiya, Cavichioli & Mejdalani sp. nov.

Figs 1I , 12A-H

Length.

♂ holotype 8.0 mm; ♂ paratypes 7.6-8.0 mm (n = 2). Male holotype. Head (Figs 1I , 12A ): in dorsal view, well produced anteriorly; median length of crown approximately 8/10 of interocular width and 5/10 of transocular width; anterior margin rounded; ocelli large, located approximately on imaginary line between anterior eye angles; surface of crown convex; antennal ledge, in dorsal view, not protuberant. Thorax (Figs 1I , 12A ) with pronotum, in dorsal view, with width slightly greater than transocular width of head; lateral margins slightly convergent anteriorly. Forewing with base of fourth apical cell approximately aligned with base of third.

Coloration (Fig. 1I ).

Head, pronotum, mesonotum, and forewing pale yellow; second apical cell of forewing with distinct red spot.

Male terminalia.

Pygofer (Fig. 12B ), in lateral view, with posterior margin broadly rounded; macrosetae distributed mostly on posterior half but some located more anteriorly. Subgenital plate (Fig. 12C ), in ventral view, with basal half broad and distal half narrow; with elongate uniseriate macrosetae on basal half, microsetae distributed along outer lateral margin. Connective (Fig. 12E ), in dorsal view, V-shaped; stalk carinate dorsally, much longer than one arm width. Style (Fig. 12D ), in dorsal view, slender, elongate, not extending posteriorly beyond apex of connective; narrowed apically, apex obtuse. Aedeagus (Fig. 12F ), in lateral view, falciform, with apical spiniform process directed posteroventrally; gonoduct distinct, gonopore located apically. Paraphyses slightly asymmetrical; elongate, extending posteriorly beyond subgenital plate apex; stalk shorter than rami; in dorsal view (Fig. 12G ), rami slender, slightly divergent posteriorly; in lateral view (Fig. 12H ), rami narrowing gradually towards apex.

Female unknown.

Etymology.

The name of the new species, Dasmeusa rafaeli , is given in honor of Dr. José Albertino Rafael (Instituto Nacional de Pesquisas da Amazônia, Manaus) in recognition of his outstanding contribution to the knowledge of the Brazilian entomofauna.

Type locality.

Brazil (Amazonas State).

Type material.

Brazil, Amazonas State • ♂ holotype: "BRASIL, AM [Amazonas State], Manaus, \ R. [Reserva] F. [Florestal] Ducke, AM-010 km 26 \ 02°25′49.5″S, 59°58′31.8″W \ Julho/Agosto 1979 \ Fumigação - Dossel \ T. E. Erwin"; "Brazil Canopy Fogging \ Project - July/August \ Dry Samples \ Trans. 10 (1 of 2)" (INPA). Paratypes • 1 ♂: "BR [Brazil], A.M., Manaus, ZF-2 \ Km-14, 2°35′21″S - \ 60°06′55″W 18.i- \ 01.ii.2019, YPT, 16mt. alt. \ J.A. Rafael - RedeBia" (DZRJ) • 1 ♂: "BRAZIL: AMAZONAS \ 18.1 Km e [east of] Campinas \ field sta. [station] Km 60 \ n Manaus 22Feb1979 \ 02°30′S 060°15′W "; "Montgomery, Erwin, \ Schimmel, Krischik, \ Date, Bacon colls."; "Terra firme forest \ canopy fogged with \ Pyrethrum \ Sample #9" (INPA).

Additional material examined.

Brazil , Amazonas State • 1 ♂: "Brasil AM [Amazonas State] CEPLAC \ Manaus - Rod. [Rodovia] AM010 \ Km 30: 5.X.1977 \ Col. I.S. Gorayeb " (MPEG) • 1 ♂: "BRASIL: AMAZONAS \ 18.1 km e [east of] Campinas \ field sta. [station] Km 60 \ n Manaus 22Feb1979 \ 02°30′S 060°15′W "; "Terra firme forest \ canopy fogged with \ Pyrethrum \ Sample #24"; "Montgomery, Erwin, \ Schimel, Krischik, \ Date, Bacon colls." (INPA). Guyana • 1 ♂: "#CICA 075 \ Catostemma fragrans [host-plant] \ Camoudi 24-10-1997 "; "Hand collecting/beating \ Station 2809-1 \ Seed/Sapl/Tree"; "Mabura Hill \ GUYANA \ Y. Basset, Coll."; “9086” (DZUP) • 1 ♀: same data as preceding except “25-10-1997”; "Station 3098-2"; “6926” (DZUP) .

Taxonomic notes.

The color pattern of D. rafaeli sp. nov. (Fig. 1I ) is similar to that of D. falcifera sp. nov. (Fig. 1C ) because both have a distinct small red spot at the second apical cell of the forewing. The aedeagus of D. falcifera bears a conspicuous dentiform process at the basal half of the ventral margin (Fig. 4E ), a feature that is not present in D. rafaeli (Fig. 12F ).

3.1.5. Additional (unidentified) material of Dasmeusa (females or specimens without abdomen)

Brazil: Amapá State [new record] • 1 ♀: "SERRA DO NAVIO \ Terr. [ Território do] Amapá BRASIL \ 30-IX-1957 \ J. Lane leg."; “Coleção \ J. Lane" (MZSP) • 1 ♀: "Serra Lombarda \ Limão \ 23.8-1961" \\ "Brasil, AP [ Amapá State] \ J. & B. Bechyné” (MPEG) • 1 ♀: "Rio Felicio \ Terr. Amapá BRASIL \ 6/III/1959 \ J. Lane leg." \\ “COLEÇÃO \ J. LANE" (MZSP). Amazonas State • 1 ♀: "BRASIL - AM [Amazonas State] \ 21-v-1976 \ I. S. Gorayeb"; "Rod. [Rodovia] AM - 01 \ Km 30" (INPA) • 1 ♀: "Reserva Ducke \ Manaus Amazonas \ Brasil \ 29-x-1976"; "Collector: \ N. D. Penny" (INPA) • 1 ♀: "BRASIL: Amazonas, Barcelos, Rio \ Aracá, Com. [Comunidade] Bacuquara, \ 00.15309N 063.17743W \ Prato Amarelo 12-14/VI/2010 \ Takiya; Rafael & Cavichioli" (DZUP) • 1 ♀: "BRASIL: Amazonas, Santa Isabel \ do Rio Negro, Rio Padauari, \ Igarapé do Maia 00.194410N \ 064.01083W Malaise [trap] \ 08-10/VI/2010 \ Takiya & Cavichioli" (DZUP); one specimen without abdomen: "BRAZIL: Amazonas State \ Rio Abacaxis, 140Km SE \ Borba, 27-28.V.2008 \ 05°15′09″S 058°41′52″W \ D.M. Takiya sweep" (DZRJ) • 2 ♀♀: "Brasil, AM, Manaus \ PDBFF [Projeto Dinâmica Biológica de Fragmentos Florestais], 2°24′S 59°52′W \ Faz. [Fazenda] Esteio, Res. 1301 \ 04.i.1986, Malaise, \ Bert Klein leg." (INPA) • 2 ♀♀: "BRASIL: Amazonas, Barcelos, Rio \ Aracá, Com. Bacuquara, \ 00.15309N 063.17743W \ Sweep 12-14/VI/2010 \ Takiya & Cavichioli" (DZUP) • 1 ♀: same data as preceding except "Prato Amarelo" \ "Takiya; Rafael & Cavichioli" (DZUP). Pará State • 1 ♀: "Brasil, Pará, Óbidos, \ Fazenda Iupará \ 01/IX/2001"; "Varredura \ J. A. Rafael & \ J. F. Vidal" (DZUP) • 1 ♀: “Pará - Brasil \ Barcarena \ 10-I-1984"; "Brasil Pará \ W. Overal" (MPEG). São Paulo State [?] • 5 ♀♀: "S. [ São] José do Barreiro \ Serra da Bocaina \ Faz. do Bonito, SP [ São Paulo State] \ M.A. Vulcano col." (MZSP).

French Guiana: one specimen without abdomen: "FRENCH GUIANA: Laussat \ P8 \ 05°28′31.6″N - 053°35′07.3″W \ 18.x.2010 \ Lamarre G. leg"; "Flooded forest \ Vitre trap (V5)" (DZRJ).

Guyana: 1 ♀: "GUYANA: Essequibo, \ forest on plateau \ above Kaieteur Falls, \ approx. 400m. alt."; "17 October 1991 \ J. H. Martin coll. \ B. M. 1991-182" (DZUP) • 2 ♀♀: “h.3079.”; "Brit. Guiana: \ nr. Mazaruni Hd. \ Pakaraima Mts. \ 1932, J.G. Myers."; "Brit. Mus. \ 1933-400."; "b m"; "gen. nr. Pa- \ romenia \ ♀ \ d. DAYoung 6" (DZUP).

Figures

Figure 1. Species of Dasmeusa, body in dorsal view (antennae and legs not depicted). A D. basseti, B D. dinizi sp. nov., C D. falcifera sp. nov., D D. imperialis, E D. isabellina, F D. mendica, G D. oriximina sp. nov., H D. pauperata (type-species), I D. rafaeli sp. nov. Scale bars: 2 mm.

Figure 4. Dasmeusa falcifera sp. nov. A - G Male. A head, pronotum, and mesonotum, dorsal view; B pygofer, lateral view; C valve and subgenital plate, ventral view; D connective and style, dorsal view; E ejaculatory bulb and aedeagus, lateral view; F paraphyses, dorsal view; G paraphyses, lateral view; H - I female; H sternite VII, ventral view; I pygofer, lateral view.

Figure 12. Dasmeusa rafaeli sp. nov., male. A Head, pronotum, and mesonotum, dorsal view; B pygofer, lateral view; C subgenital plate, ventral view; D style, dorsal view; E connective, dorsal view; F ejaculatory bulb and aedeagus, lateral view; G paraphyses, dorsal view; H paraphyses, lateral view.