Acrogonia distincta, Silva & Cavichioli & Takiya & Mejdalani, 2018

Silva, Roberta Dos Santos Da, Cavichioli, Rodney R., Takiya, Daniela M. & Mejdalani, Gabriel, 2018, Descriptions of seven new Acrogonia species from South America (Hemiptera: Cicadellidae: Cicadellinae: Proconiini), Zootaxa 4374 (3), pp. 375-394 : 381

Acrogonia distincta sp. nov.

( Figures 26–32 )

Total length. Male holotype 9.8 mm; female unknown.

Holotype description. Head and thorax. Structural features of head and thorax much as described above for A. falcata sp. nov., except median length of crown approximately 9/10 interocular width and 1/2 transocular width, pronotum with posterior margin strongly concave, and forewings translucent.

Color. Anterior dorsum ( Fig. 26 ) dark brown to black with many irregular yellow spots, except disc of pronotum with green spots; apex of scutellum greenish-white. Forewing ( Figs. 26–27 ) translucent, except small yellow markings and brown area at base; veins brown. Face ( Fig. 27 ) dark brown to black; frons with three large yellow areas, two inferior and one superior. Lateral and ventral portions of thorax ( Fig. 27 ) dark brown to black with yellow markings; legs ( Fig. 27 ) mostly yellow with brown portions.

Male genitalia. Pygofer ( Fig. 28 ), in lateral view, strongly produced posteriorly, expanded apically. Subgenital plate ( Fig. 29 ), in ventral view, subtriangular; base with lateral projection directed anteriorly (central emarginate area between pair of projections covered by valve); basal portion slightly expanded laterally, then tapering gradually towards apex; latter slightly curved dorsally; without “articulated” portion; in lateral view, plate extending almost as far posteriorly as pygofer apex. Connective ( Fig. 30 ), in dorsal view, T-shaped; stalk narrow and very elongate, with dorsal median keel; arms poorly developed. Style ( Fig. 30 ), in dorsal view, extremely elongate, extending posteriorly much farther than apex of connective, almost as far posteriorly as apex of subgenital plate; without preapical or median lobe; apex acute. Aedeagus ( Fig. 31 ) symmetrical; shaft, in lateral view, curved dorsally on apical half, with large, dorsoapical rectangular lobe and pair of elongate, slightly asymmetrical apical processes that are not located at same plane. Anal tube ( Fig. 32 ) without processes.

Female unknown.

Etymology. The name of the new species, distincta , refers to the conspicuous features of the aedeagus, i.e., lobe and processes ( Fig. 31 ).

Type material. Holotype: male, “Coari-AM [state of Amazonas] \ Brasil \ 25/I-10/II/95 \ Bührnhein leg” ( INPA).

Figures

FIGURES 26–32. Acrogonia distincta sp. nov. 26, body, male holotype (DZUP), dorsolateral view (total length 9.8 mm); 27, body, male holotype, lateral view; 28–32, male genitalia: 28, pygofer, lateral view; 29, subgenital plates, ventral view (valve not depicted); 30, styles and connective, dorsal view; 31, aedeagus, lateral view; 32, anal tube, lateral view. Scale bars: 28–30, 32 = 1 mm; 31 = 0.5 mm.