Carinefferia prolifica (Osten-Sacken)

Lavigne, Robert J. & Dennis, Steve, 2019, Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species, Zootaxa 4662 (1), pp. 1-126 : 37

Carinefferia prolifica (Osten-Sacken)

Erax prolificus ( Osten-Sacken, 1887) : 202.

Recognition characters: Yellowish gray to brownish gray species; length 15–20 mm; mystax white mixed with some black and sometimes yellowish bristles; thorax mesonotum yellowish gray to brownish gray; dorsocentral stripe brown, narrow; crest formed of black setae subequal in length to antennal segments 1–2 with very few black bristles; anterior of scutellum with tuft of short, white setae; scutellum with short white hairs medially, long black bristles along margin; wings tinged with brown, costal vein dilated and subcostal vein black; male abdominal segments 2–4 black with mostly black setae, 5–7 white with white setae that are long and sparse laterally; female segments 2–7 black with black setae, venter 1–7 with erect white hairs, sometimes black on segment 7; legs with white setae and black and pale bristles, femora black with greenish metallic luster, tibiae red, darker apically, tarsi red.

Distribution: TETON: Grand Teton National Park, 18 Aug. 1931 ( LDA) (female specimen in CAS).

Habitat: Sagebrush steppe shrub and grassland vegetation type.

Ethology: Nothing known.

Prey: None known.