Bromley, 1931b: 430 Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species Lavigne, Robert J. Dennis, Steve Zootaxa 2019 2019-08-30 4662 1 1 126 4VQCX (Bromley) Bromley Bromley 1931 [151,540,1304,1331] Insecta Asilidae Scleropogon Animalia Diptera 105 106 Arthropoda species neglectus     Stenopogon neglectus  Bromley, 1931b: 430.   Recognition characters:Gray species; length 23–27 mm; mystax straw white; short bristles anteriorly on mesonotum reddish brown, long straw white bristles posteriorly, postpronotal bristles long, stout, yellowish anteriorly, thin, short and whitish posteriorly; metapleural bristles thin, straw white; first posterior cell of wing open; abdomen gray pollinose; male genitalia dark brown to black, apex of epandrium broadly rounded, lobes of hypandrium roughly triangular with straight edge apically and cleft shallowly between, see  S. graminis.  Distribution:ALBANY: Rock River, 13 Aug. 1963( LJS). BIG HORN: Greybull, 7 Sept. 1965( RJL); Lovell, WANG, LTA, 2 July 2005( CSU, GMAD). CARBON: base of Elk Mtn., numerous records 6 July–25 Aug( RJL, SD), FREMONT: Gas Hills, Road, Riverton, 4–27 Sept. 1963; 31 Aug. 1964( RJL); Riverton, 3 Aug. 1955( GEB); holotype, near Lander,  1,524 –2,438m(  5,000 –8,000ft), July ( RM) ( OS, CATIC);, topotypes, 3.2 km N of Lander, 7 Aug. 1968( RJL) (mated pair male and female specimens in CAS); Shoshone National For., Horse Creek Campground, 21 July 1957( AD, HD) (specimen in CAS). LARAMIE: Medicine Bow Mtns., Summit, 2,633 m( 8,640 ft), 29 July 1974( PSB) (specimen in CAS). PARK: North Fork of Shoshone River, Rt. 14–20 crossing, 21 Aug. 1963( LJS, RJL). PLATTE: Dwyer, 28 June–5 July 1961( RJL, REP); Guernsey, numerous records, 21 June–6 July( RJL, REP); Wheatland, 23 June 1964( RJL, REP). SUBLETTE: 70 kmW of South Pass City, 7 Aug. 1968( RJL). TETON: Jackson, 14 Aug. 1964( FRH, RJL); Teton National For., 14 Aug. 1964; 17–20 Aug. 1965( FRH, RJL), 3 Aug. 1972( SD). YELLOWSTONE NATIONAL PARK: Mammoth Hot Springs Camp, 23 July 1957( AD, HD) (specimen in CAS); Roaring Mtn., 2,286 m( 7,500 ft), 25 July 1923( HCS). Recorded from Wyoming by: Adisoemarto (1967)(Lander, Jackson, Carbon County); Bromley (1931b)(type series near Lander, August, YNP; as  Stenopogon neglectus); Cole (1969)(as  Stenopogon neglectus); Dennis & Lavigne (1975)(as prey of  Stenopogon inquinatus); Dennis et al.(2009, 2010); Geller-Grimm (2018); Lavigne (1992); Lavigne & Dennis (1994); Martin & Wilcox (1965)(as  Stenopogon neglectus); Wilcox (1971).  Habitat:Saltbrush-greasewood shrub, sagebrush steppe shrub and grassland, and grama-needlegrass-wheatgrass grassland vegetation types. Open rangeland,  Artemisia tridentata.  Ethology:Rests on and forages from sagebrush, low-growing vegetation and ground (see Dennis & Lavigne 1975).  Prey: ORTHOPTERA, Acrididae:  Melanoplus cinereusScudder, 5.6 km NW Riverton, 12 Aug. 1981( RJL); Shoshoni, 16 kmS, 19 Aug. 1992( RJL). HEMIPTERA (Heteroptera), Pentatomidae:  Chlorochroasp. prob. sayiStål. COLEOPTERA, DIPTERA, EPHEMEROPTERA, HEMIPTERA (Heteroptera, Homoptera), HYMENOP- TERA, LEPIDOPTERA, NEUROPTERA, ODONATA, ORTHOPTERA(see Dennis & Lavigne 1975; Dennis et al.2009, 2010; Lavigne 1992; Lavigne & Dennis 1994; Lavigne & Pfadt 1966as  Stenopogon neglectus).