Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species Author Lavigne, Robert J. Author Dennis, Steve text Zootaxa 2019 2019-08-30 4662 1 1 126 journal article 25823 10.11646/zootaxa.4662.1.1 7070ef91-15db-4b7e-a87d-72e7b0bdb192 1175-5326 3383448 366A1E81-946C-4ED4-8A65-C51151FE87CC Ospriocerus latipennis (Loew) Stenopogon consanquineus Loew, 1866: 27 . Recognition characters: Brownish yellow species; length 16–20 mm ; mystax straw white; thorax gray pollinose with short yellowish setae dorsally; meron with setae only; scutellar setae lacking, scutellar bristles straw white; wings brown; abdomen yellowish brown with black areas laterally; legs yellowish brown with anterior sides of femora partially black, setae and bristles yellowish white. Distribution: CONVERSE: Glenrock, Dave Johnson Pl./Station 13, 23 Aug. 1974 ( RJL ) (specimen in NMS- CA ). GOSHEN: Goshen Co., 18 July 1945 ( REP ) (specimen in NMSCA ); Lingle, 14 July 1927 ( CLJ-UK ); 64 km N of Lusk, July 1895 ( RM-UK ). PLATTE: Camp Guernsey , WANG, 2001 ( CSU , GMAD ); Dwyer, numerous records, 25 June–15 Aug. ( DRT , RJL ); Gray Rocks, Camp Guernsey , WANG, 25 June–5 Aug. 2008 ( CSU , GMAD ); Guernsey , numerous records, 15 June–31 Aug. ( LJS , REP , RJL , SD ); Oregon Trail Park, Guernsey , 1 July–26 Aug. 1972 ( SD ); Palmer Canyon, Laramie Range, 1,703 km ( 5,587 ft ), 12 July 1966 ( RJL ); Platte Co., 31 Aug. 1951 ( REP ); Wheatland, 25–27 July 1965 ( FRH ); Wheatland, 16 km NE, numerous records, 24 June–26 Aug. ( RJL ). Recorded from Wyoming by: Adisoemarto (1967) (Douglas); Brown (1929) [Fort Bridger (Uinta County) as Stenopogon consanquineus ]; Dennis & Lavigne (1975) [as prey of Proctacanthus milbertii (as Proctacanthus micans )]; Dennis et al. (2010) ; Geller-Grimm (2018) ; Lavigne & Dennis (1994) ; Lavigne & Holland (1969) (as prey of Diogmites angustipennis ); Lavigne et al. (1994); Martin (1968) . Habitat: Grama-needlegrass-wheatgrass and grama-buffalo grass grassland vegetation types . Open range (rangeland), short- to mid-grass plains (see Dennis & Lavigne 1975 ). Ethology: Forages from ground and vegetation (see Dennis & Lavigne 1975 ). Prey: ARANEAE, COLEOPTERA , DIPTERA , HEMIPTERA (Heteroptera, Homoptera) , HYMENOPTERA , LEPIDOPTERA , NEUROPTERA, ORTHOPTERA (see Dennis & Lavigne 1975 ; Lavigne & Dennis 1994 ; Rogers & Lavigne 1972 ).