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 Cyrtopogon curtistylus Curran Cyrtopogon curtistylus Curran, 1923: 133 . Recognition characters: Blackish species; length 15–18 mm ; third antennal segment black; mystax of male yellow, female mystax black; thorax shining black with conspicuous marginal bristles; scutellum entirely shining black and with coarse, black pile of even length; wings hyaline on basal half, outer half yellowish brown fading out apically and posteriorly; abdomen shining black, male first segment with reddish yellow pile, female sparsely yellow setae; male 2–4 with long orange colored pile, female with black setae; legs black, pile rather abundant, tarsal joints in part brownish; upper surface of fore tibiae in male silvery white pile, in female golden pile. Distribution: CARBON: Elk Mtn., 25 July 1971 ( RJL ), 2 nd label: courting male/on road/12: 20 p. m. SUB- LETTE: 16 km N of Pinedale, 31 July 1968 ( WAN ); TETON: Teton National For., Big Game Ridge, elevation 2,896 m ( 9,500 ft ) (specimen in CAS ); Teton National Park, 2,896 m ( 9,500 ft ) 5 Aug. 1961 ( JGE ). YELLOWSTONE NATIONAL PARK: 4898N527.5E, 14 July 1990 , malaise trap. Habitat: Sagebrush steppe shrub and grassland vegetation types . Ethology: Nothing known. Prey: None known.