Longivena flava, Vieira, Rodrigo & Rafael, Jose Albertino, 2014

Vieira, Rodrigo & Rafael, Jose Albertino, 2014, Longivena, a new robber-fly genus from Brazil (Diptera, Asilidae, Asilinae), ZooKeys 443, pp. 119-138 : 122-123

Taxon classification Animalia Diptera Asilidae

Longivena flava sp. n. Figs 23-31

Diagnosis.

Antepronotum and postpronotum yellow; mesonotum yellowish (Fig. 23); pleuron yellow, except for black katepimeron (Fig. 23); legs whitish yellow, except for femora with black apex (Fig. 23); tergites yellow, with black dorsal maculae on tergites I–V (Figs 23, 24); sternites whitish to light yellow; male sternite VIII developed medioapically (Fig. 31); terminalia light yellow basally and brown to black on remaining area (Figs 23, 24).

Male.

Holotype. Head. Scape yellow with black apex, pedicel yellow, but black dorsally and apically, postpedicel black; two long ocellar macrosetae and seven long setae; vertex yellow, gold tomentose; frons and face yellow, gold tomentose; mystax with black and yellow macrosetae; palpus yellow with black and yellow setae; proboscis black, except for yellow labella with labial setae yellowish; occiput gold tomentose with yellow setae; eight to nine black postocular macrosetae.

Thorax (Fig. 23). Antepronotum and postpronotum yellow; mesonotum yellow; pleuron yellow, except for black katepimeron. Chaetotaxy: two black notopleural macrosetae; one to two black supra-alar macrosetae; two black postalar macrosetae; black dorsocentral macrosetae; no anatergal setae; no apical scutellar setae; discal scutellar setae yellowish, except for one black seta; katatergal macrosetae yellowish; setae on posterior meron + metanepisternum yellowish.

Wing (Fig. 3). Crossvein r-m basal to middle of discal cell; halter whitish-yellow.

Legs (Fig. 25). Light yellow, except apex femora black. Fore femur with thin and yellow ventral setae; mid femur with three black anterior setae; hind femur with three yellow anterior setae, two yellow and three black anteroventral setae, and preapical dorsal region with one black anterior macroseta and one yellow posterior macroseta; fore tibia with two to three yellow and one black posterior macrosetae; mid tibia with two long black anteroventral setae; hind tibia with three black and one yellow anterior setae; hind tibia with a group of short, yellow, spiniform setae, in a row from the base of the tibia and continuing until the fourth tarsomere; fore and mid tarsomeres with black setae; hind tarsomeres with mostly black setae, except for two yellow setae apically on the first tarsomere.

Abdomen (Fig. 23). Tergites yellow, with black dorsal maculae on tergites I–V; sternites whitish to light yellow; sternite VIII developed medioapically.

Terminalia (Figs 24, 26-31). Light yellow basally, remaining dark brown to black (Figs 23, 24). Epandrium with a truncate projection in lateral view (Figs 24, 26); gonocoxite with a long projection truncated apically (Fig. 28); gonostylus enlarged apically, with small spiniform setae (Fig. 30); ejaculatory apodeme long and narrow proximally in lateral view (Fig. 27); aedeagus with round ventral projection placed before the curved apex (Figs 27, 29).

Length. Body 12.2 mm; wing 9.2 mm.

Female.

Unknown.

Holotype conditions.

left wing slightly wrinkled; right katatergite and left posterior basalare sclerite punctured; right mid leg glued onto thorax; hind tibiae crushed medially. Right detached wing mounted on microslides, terminalia placed in microvial with glycerin and pinned along with the specimen.

Etymology.

From Latin flava = yellow, referring to the specimen’s color.

Distribution. Brazil: Mato Grosso do Sul (Fig. 50).

Type material examined.

Holotype: BRASIL, Mato Grosso do Sul, Dourados, 22°11'42.2"S, 54°58'35.6"W, 398m, 23. x– 06.xi.2012 / Malaise, Teles Col., Amostra 15 / Holotype Longivena flava (♂ INPA).