Acrogonia amazonensis sp. nov.

(Figs. 1–9)

Total length. Male holotype 8.5 mm; female unknown.

Holotype description. Head and thorax. Head (Figs. 1–2) strongly produced anteriorly; median length of crown approximately 9/10 interocular width and 5/10 transocular width. Crown (Fig. 1), in dorsal view, with triangular form; with carina and elevation at transition to face; coronal suture distinct; ocelli located behind imaginary line between anterior eye angles, each approximately equidistant between median line of crown and adjacent anterior eye angle; with median fovea, without sculpturing or setae. Antennal ledges, in dorsal view, slightly protuberant; in lateral view, carinate dorsally. Frons convex; muscle impressions distinct; epistomal suture obscure medially; clypeus not produced, its contour continuing profile of frons. Thorax (Figs. 1–2) with width of pronotum less than transocular width of head; lateral pronotal margins parallel; posterior margin emarginate; dorsopleural carinae complete; pronotal disc with rugae, without pubescence; mesonotum with scutellum not transversely striate. Forewings (Figs. 1–2) with coriaceous texture; membrane restricted to apical cells, apical portions of anteapical cells and extending anteriorly along costal margin. Hind legs with femoral setal formula 2:0:0; length of first tarsomere greater than combined length of two more distal tarsomeres.

Color. Ground color of anterior dorsum (Fig. 1) mostly dark green; crown with irregular yellow maculae bordering anterior margin from apex to antennal ledges and also extending along inner eye margins; pronotum with small irregular yellow marks anteriorly; mesonotum with yellow apex. Forewings (Figs. 1–2) dark green, except for membranous portions and irregular pale marks. Face and lateral and ventral portions of thorax yellow to greenish-yellow; frons brown on superior portion; lateral lobe of pronotum dark brown on superior portion. Legs brownish-yellow.

Male genitalia. Pygofer (Fig. 3), in lateral view, strongly produced posteriorly; with distinct lobe on basiventral portion; dorsoapical portion folded inward; setae distributed mostly on median and distal third of disc. Subgenital plates (Fig. 4), in ventral view, subtriangular; basal third expanded laterally and then tapering abruptly toward apex; apical portion small, digitiform, appearing articulated at its base with remainder of plate; in lateral view, plates short, not extending posteriorly beyond basal half of pygofer; plate surface with scattered setae. Connective (Fig. 5), in dorsal view, T-shaped; stalk narrow, with median keel [a previously unknown feature in the genus], apex expanded. Style (Fig. 5), in dorsal view, extending posteriorly slightly farther than apex of connective; preapical lobe distinct, bearing few setae; apical portion directed outward; apex acute (Fig. 6). Aedeagus (Figs. 7– 8) symmetrical; shaft, in lateral view (Fig. 7), short and slightly curved dorsally, without processes; in ventral view (Fig. 8), with pair of lateral sclerotized lines, slightly narrowed apically; aedeagal base with pair of elongate slender processes, their length twice length of shaft and apices acute. Anal tube (Fig. 9) without processes.

Female unknown.

Etymology. The new species name, amazonensis, refers to the state of Amazonas, northern Brazil.

Type material. Holotype: male, “ BRASIL, AM [state of Amazonas], Manaus, Rod. [ Rodovia] AM\ 0 10, km50. ZF-2, km27, próximo\ entrada LBA, 02°35`S ;60°06`W.\ 5–6.iii.2011. 21–00:00h. Arm. [Armadilha]\ luminosa móvel. J.T. Camara;\ P. Dias; J. A. Rafael leg” (INPA).