Dasmeusa oriximina 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

3.1.4.6. Dasmeusa oriximina Pecly, Takiya, Cavichioli & Mejdalani sp. nov.

Figs 1G , 7A-G

Length.

♂ holotype 8.0 mm. Male holotype. Head (Figs 1G , 7A ): in dorsal view, strongly produced anteriorly; median length of crown approximately 9/10 of interocular width and 6/10 of transocular width; anterior margin rounded; ocelli large, located approximately on imaginary line between anterior eye angles, each ocellus approximately equidistant between median line of crown and adjacent eye angle; surface of crown depressed anteriorly; antennal ledge, in dorsal view, slightly protuberant. Thorax (Figs 1G , 7A ) with pronotum, in dorsal view, with width slightly greater than transocular width of head; lateral margins convergent anteriorly. Forewing with base of fourth apical cell approximately aligned with base of third.

Coloration (Fig. 1G ).

Head, pronotum, mesonotum, and forewing pale yellow.

Male terminalia.

Pygofer (Fig. 7B ), in lateral view, with posterior margin rounded; macrosetae distributed on posterior half but some located more anteriorly. Subgenital plate (Fig. 7C ), 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. 7D ), in dorsal view, T-shaped; stalk much shorter than one arm width. Style (Fig. 7D ), in dorsal view, slender, elongate, extending posteriorly well beyond apex of connective; slightly narrowed apically, apex obtuse. Aedeagus symmetrical (Fig. 7E ); shaft short; ventral margin of shaft with preapical portion produced into robust process directed ventrally, posterior margin of process smooth; gonoduct distinct, gonopore located apically. Paraphyses symmetrical; elongate, extending well beyond subgenital plate apex; in dorsal view (Fig. 7F ), stalk subequal in length to rami; rami slightly curved and crossing each other apically; in lateral view (Fig. 7G ), stalk approximately rectilinear and with pair of strong dorsoapical processes, rami directed dorsally, narrowed apically.

Female unknown.

Etymology.

The name of the new species, Dasmeusa oriximina , refers to the type locality ( Oriximiná) in Pará State (Northern Brazil). It is a noun in apposition.

Type locality.

Brazil ( Pará State).

Type material.

Brazil, Pará State • ♂ holotype: "BR [Brazil]/ PA [ Pará State] - Oriximiná \ Porto Trombetas \ 6-14.viii.2018 \ M.L. Soares & Y. \ Anthoinine \ Malaise [trap]" (DZRJ).

Taxonomic notes.

Dasmeusa oriximina sp. nov. (Fig. 1G ) is similar to D. dinizi sp. nov. (Fig. 1B ) in the male terminalia, especially the aedeagus. The former species can be easily distinguished from the latter and other Dasmeusa species by the conspicuous dorsal processes of the paraphyses stalk (Fig. 7G ).

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 7. Dasmeusa oriximina 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.