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

Silva, Roberta Dos Santos Da, Cavichioli, Rodney R., Takiya, Daniela M. & Mejdalani, Gabriel, 2017, Descriptions of eight new Acrogonia species from the Amazon region, including peculiar features of the female genitalia (Hemiptera: Cicadellidae: Cicadellinae: Proconiini), Zootaxa 4244 (4), pp. 515-534: 526-530

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Acrogonia filiformis

sp. nov.

Acrogonia filiformis  sp. nov.

( Figs. 75–92View FIGURES 75 – 81View FIGURES 82 – 92)

Total length. Male holotype 10.5 mm; male paratype 10.0 mm; female paratype 11.4 mm.

Holotype description. Head and thorax. Structural features of head and thorax ( Figs. 75–76View FIGURES 75 – 81) much as described above for A. amazonensis  sp. nov., except for median length of crown approximately equal to interocular width and 7/10 transocular width; forewings ( Figs. 75–76View FIGURES 75 – 81) mostly translucent.

Color. Crown ( Fig. 75View FIGURES 75 – 81) brown with yellow dots and marks bordering anterior margin from apical portion to anterior eye angles; other small yellow markings also present; frontogenal, temporal and coronal sutures dark brown to black. Posterior 2/3 of pronotum and mesonotum ( Fig. 75View FIGURES 75 – 81) dark brown; anterior 1/3 of pronotum brown with irregular yellow marks; lateral portions of pronotum yellowish; mesonotum with pair of lateral brownishyellow marks, apex pale yellow. Forewings ( Figs. 75–76View FIGURES 75 – 81) mostly translucent with brown areas and dots on clavus and apical third of corium. Face ( Fig. 76View FIGURES 75 – 81) dark brown; frons superiorly brown with yellow marks, yellow inferiorly. Lateral and ventral portions of thorax ( Fig. 76View FIGURES 75 – 81) mostly dark brown. Legs ( Fig. 76View FIGURES 75 – 81) brownish-yellow to brown.

Male genitalia. Pygofer ( Fig. 77View FIGURES 75 – 81), in lateral view, well produced posteriorly; without basiventral projection; with sclerotized projection directed inward on distal third of ventral margin; disc with dispersed setae. Subgenital plates ( Fig. 78View FIGURES 75 – 81), in ventral view, subtriangular, basal portion slightly expanded laterally, then narrowing slightly toward distal fourth, latter more strongly narrowed; median portion of lateral margin slightly concave; in lateral view, plates elongate, extending almost as far posteriorly as pygofer apex; plate surface with scattered setae. Connective ( Fig. 79View FIGURES 75 – 81), in dorsal view, T-shaped; arms short; stalk narrow, very elongate, with median keel. Style ( Fig. 79View FIGURES 75 – 81), in dorsal view, extending much farther posteriorly than apex of connective; outer margin sinuous; without preapical lobe; apex acute. Aedeagus ( Fig. 80View FIGURES 75 – 81) symmetrical, filiform, elongate; shaft curved dorsally at base and curved ventrally at basal third; without processes. Anal tube ( Fig. 81View FIGURES 75 – 81) without processes.

Female. Genitalia. Sternite VII ( Fig. 82View FIGURES 82 – 92), in ventral view, bilobed; with deep V-shaped posterior emargination. Pygofer ( Fig. 83View FIGURES 82 – 92), in lateral view, well produced posteriorly; apex obtuse; setae distributed mostly on posterior portion and extending anteriorly along ventral margin. First valvifers ( Figs. 84–85View FIGURES 82 – 92), in lateral view, subrectangular. First valvulae ( Fig. 84View FIGURES 82 – 92), in ventral view, slightly expanded basally; in lateral view ( Fig. 85View FIGURES 82 – 92), with slight projection on basiventral half; apex acute, dentiform ( Figs. 85–87View FIGURES 82 – 92 —DNP); ventral interlocking device ( Fig. 84View FIGURES 82 – 92 —VID) located on basal half of blade, small, lobate; dorsal sculptured area extending from basal portion of blade to apex, formed mostly by scale-like processes arranged in oblique lines; ventral sculptured area ( Fig. 87View FIGURES 82 – 92) restricted to apical portion of blade, formed mostly by scale-like processes. Second valvulae ( Fig. 88View FIGURES 82 – 92), in lateral view, distinctly expanded beyond basal curvature; dorsal margin convex; ventral margin approximately straight; preapical prominence strong ( Figs. 88View FIGURES 82 – 92 —PPR, 92); apex obtuse ( Figs. 88, 92View FIGURES 82 – 92); about 16 teeth ( Figs. 88–91View FIGURES 82 – 92) distributed on dorsal expanded portion of blade; most teeth ( Figs. 90–91View FIGURES 82 – 92) triangular, armed with denticles, with ascending portion (= anterior edge) short, descending portion (= posterior edge) long; basalmost two or three teeth small and inconspicuous; blade with ducts ( Figs. 90–92View FIGURES 82 – 92) extending to apical portion and to teeth or terminating below latter; few basal teeth ( Fig. 89View FIGURES 82 – 92) without ducts. Gonoplacs, in lateral view, with basal half narrow and apical half distinctly expanded; apex obtuse.

Intraspecific variation. The color of the anterior pronotal margin varies from brown to brownish-yellow. The mesonotum may be entirely brown or brown with yellow dots. Some variation may be due to fading of coloration in preserved specimens.

Etymology. The name of the new species, filiformis  , refers to the thread-like shape of the aedeagus ( Fig. 80View FIGURES 75 – 81).

Type material. Holotype: male, “Sinop-MT [state of Mato Grosso]\ BR X-1976 \ M. [Moacir] Alvarenga ” ( DZUPAbout DZUP)  . Paratypes: one male, “ Brasil Pará \ Serra Norte \ EST. NIANGANÊS\ Col. NOTURNA \ 26-X.1984 ” ( MPEGAbout MPEG)  ; one female, “ Sinop - MT\ X.1976 \ M. Alvarenga col” ( DZUPAbout DZUP)  .


Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure


Museu Paraense Emilio Goeldi