Acrogonia youngi, Silva, Roberta Dos Santos Da, Cavichioli, Rodney R., Takiya, Daniela M. & Mejdalani, Gabriel, 2017

Acrogonia youngi View in CoL sp. nov.

( Figs. 37–44 View FIGURES 37 – 44 )

Total length. Male holotype 11.5 mm; male paratypes 11.0–12.0 mm (n = 7); female unknown.

Holotype description. Head and thorax. Structural features of head and thorax ( Figs. 37–38 View FIGURES 37 – 44 ) much as described above for A. amazonensis sp. nov., except for median length of crown slightly longer than interocular width and approximately 8/10 transocular width.

Color. Anterior dorsum ( Fig. 37 View FIGURES 37 – 44 ) brownish-green; anterior and lateral portions of crown up to frontogenal sutures brown with irregular yellow marks; antennal ledges, frontogenal, temporal, and coronal sutures dark brown to black; pronotum with narrow dark brown to black marks anteriorly and laterally; mesonotum with large dark brown to black area anteriorly, its apex pale yellow. Forewings ( Figs. 37–38 View FIGURES 37 – 44 ) brownish-green, except for membranous portions. Face ( Fig. 38 View FIGURES 37 – 44 ) yellow with narrow dark brown to black area on superior portion. Lateral and ventral portions of thorax and legs ( Fig. 38 View FIGURES 37 – 44 ) mostly yellow; lateral lobe of pronotum narrowly dark brown to black on superior portion.

Male genitalia. Pygofer ( Fig. 39 View FIGURES 37 – 44 ), in lateral view, strongly produced posteriorly; without ventral lobe; surface with scattered setae, which are more visible on distal half of disc. Subgenital plates ( Fig. 40 View FIGURES 37 – 44 ), in ventral view, triangular, basal third slightly expanded laterally and then tapering gradually toward apex; in lateral view, plates elongate, extending almost as far posteriorly as pygofer apex; plate surface with scattered setae. Connective ( Fig. 41 View FIGURES 37 – 44 ), in dorsal view, Y-shaped; arms very short; stalk very long, without median keel, apex slightly expanded. Style ( Fig. 41 View FIGURES 37 – 44 ), in dorsal view, extremely elongate, extending posteriorly much farther than apex of connective; without preapical lobe; apical portion directed ventrally; apex acute. Aedeagus ( Figs. 42–43 View FIGURES 37 – 44 ) symmetrical, slender, slightly curved dorsally, bifid distally; without processes. Anal tube ( Fig. 44 View FIGURES 37 – 44 ) without processes.

Female unknown.

Etymology. The new species name is given in honor of the late Dr. David Allan Young ( North Carolina State University, Raleigh) in recognition of his remarkable contribution to our knowledge of the world Cicadellidae , including the genus Acrogonia .

Type material. Holotype: male, “ PERU \ [department of] Madre de Dios \ sw Pto Maldonato \ 290m \ BM 1989-70” ( NHM) . Paratypes: one male, same data as holotype ( DZUP) ; one male, “CRUZEIRO DO SUL\ Acre— Brasil—II-63\ M. [Moacir] Alvarenga ” ( MNRJ) ; five males, “ Rio Branco—AC\ 12-Jan-2004 \ Albuquerque, E. S. ” ( DZRJ, DZUP, MNRJ) .