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) Author Pecly, Nathalia H. https://orcid.org/0000-0003-0083-0592 Programa de Pos-graduacao em Zoologia, Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, Sao Cristovao, Rio de Janeiro, RJ, Brasil Author Takiya, Daniela M. https://orcid.org/0000-0002-6233-3615 Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro. 20940 - 040, Rio de Janeiro, RJ, Brasil Author Cavichioli, Rodney R. https://orcid.org/0000-0001-5996-0629 Departamento de Zoologia, Instituto de Biologia, Universidade Federal do Rio de Janeiro. Caixa Postal 68044, 21941 - 971, Rio de Janeiro, RJ, Brasil Author Mejdalani, Gabriel https://orcid.org/0000-0003-4513-243X Departamento de Entomologia, Museu Nacional, Universidade Federal do Rio de Janeiro. 20940 - 040, Rio de Janeiro, RJ, Brasil mejdalani@mn.ufrj.br text Arthropod Systematics & amp; Phylogeny 2023 2023-08-01 81 655 687 http://dx.doi.org/10.3897/asp.81.e102848 journal article http://dx.doi.org/10.3897/asp.81.e102848 1864-8312-81-655 9CF1B5253D104516A1B6DA386F4C48DF 9B999251BA8353B2B97922F2C22E4331 3.1.4.2. Dasmeusa dinizi Pecly, Takiya, Cavichioli & Mejdalani sp. nov. Figs 1B , 3A-G Length. ♂ holotype 8.4 mm; ♂ paratypes 8.0-8.4 mm (n = 3). Male holotype . Head (Figs 1B , 3A ): in dorsal view, strongly produced anteriorly; median length of crown approximately 9/10 of interocular width and 4/10 of transocular width; anterior margin rounded; ocelli large, located approximately on imaginary line between anterior eye angles; surface of crown slightly concave; antennal ledge, in dorsal view, slightly protuberant. Thorax (Figs 1B , 3A ) with pronotum, in dorsal view, with width slightly greater than transocular width of head. Forewing with base of fourth apical cell approximately aligned with base of third; with three anteapical cells, their bases obscure. Coloration (Fig. 1B ). Head, pronotum, mesonotum, and legs pale yellow. Forewing pale yellow, translucid, preapical area with irregular orange transverse band. Male terminalia. Pygofer (Fig. 3B ), in lateral view, with posterior margin rounded; macrosetae distributed mostly on posterior half but some located more anteriorly. Subgenital plate (Fig. 3C ), in ventral view, with basal half broad and distal half very narrow; with elongate uniseriate macrosetae on basal half, microsetae distributed along outer lateral margin. Connective (Fig. 3D ), in dorsal view, T-shaped; stalk carinate dorsally, shorter than one arm width. Style (Fig. 3D ), in dorsal view, slender, extending posteriorly beyond apex of connective; narrowed apically, apex obtuse. Aedeagus (Fig. 3E ) symmetrical; shaft short; ventral margin of shaft with preapical portion produced into robust process directed ventrally, posterior margin of process dentate; gonoduct distinct, gonopore located dorsoapically. Paraphyses slightly asymmetrical, articulated with apex of connective; elongate, extending well beyond subgenital plate apex; stalk longer than rami; in dorsal view (Fig. 3F ), stalk long and robust, with pair of small dorsal processes on apical third and pair of small ventroapical processes; in lateral view (Fig. 3G ), stalk slightly sinuous; rami slender, directed dorsally, narrowing towards apex. Female unknown. Etymology. The name of the new species, Dasmeusa dinizi , refers to the biologist Andre Luis Diniz Ferreira, in recognition of his friendship to the first author and contribution as a skilled insect collector. Type locality. Laussat (French Guiana). Type material. French Guiana • ♂ holotype : "French Guiana: Laussat \ P3 \ 05°28′31.6″N- 053°35′07.3″W \ 12.ix.2010 \ Lamarre G. leg"; "White sand forest \ Light trap" (DZRJ). Paratypes • 2 ♂♂: same data as the holotype (DZRJ) • 1 ♂: "FRENCH GUIANA: Montagne \ des Chevaux \ 4°44'56″N - 52°26'28″W , alt. 75 m \ 26.vi.2011 \ window trap \ SEAG col." (MNRJ). Taxonomic notes. Dasmeusa dinizi sp. nov. (Fig. 1B ) is similar to D. oriximina sp. nov. (Fig. 1G ). These species share many similarities in the male terminalia, especially in the aedeagus and paraphyses. However, D. dinizi can be recognized by the two pairs of small processes on the paraphyses stalk (Fig. 3G ), one located dorsally at the base of the apical third and another ventrally at the apex. Figure 3. Dasmeusa dinizi sp. nov. , male. A Head, pronotum, and mesonotum, dorsal view; B pygofer, lateral view; C 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.