Laphystia rufiventris Curran, 1931

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 : 95

Laphystia rufiventris Curran

Laphystia rufiventris Curran, 1931: 17 .

Recognition characters: Gray and reddish brown species; length 9–11 mm; mystax white, thorax gray pollinose; scutellar bristles lacking, scutellar setae white with few upright marginal setae, usually 1 medial long setae and 2–3 outer, short setae; abdomen reddish brown with dorsum of first two segments fading into black, gray pollinose area confined to apical corners; legs with all femora black, except for reddish narrow base and apex; about the basal 1/6 of tibiae yellowish; appressed short white setae providing a gray aspect; setae white, bristles white to yellowish.

Distribution: HOT SPRINGS: 8 km NW of Thermopolis, 25 June 1980 ( RJL). SWEETWATER: Type, female, Green River, 2 July 1920 ( FEL); topotype, Green River, 21 June 1950 ( CHM, in Martin coll.); type, female, Green River, 2 July 1920 ( FEL) ( Curran 1931); holotype, one male, Green River, 21 June 1950 ( CHM, in Martin coll.) ( Wilcox 1960); Rock Springs, Baxter Rd., 11 July 1991 ( RJL, JF). UINTA: 14.5 km NE of Lyman, Black Forks Rd., 16 July 1980 ( RJL). Recorded from Wyoming by: Cole (1969); Fisher & Wilcox (1997); Geller-Grimm (2018); Martin & Wilcox (1965); Wilcox (1960).

Habitat: Sagebrush steppe shrub and grassland vegetation type.

Ethology: Nothing known.

Prey: None known.