James, 1937: 14 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 3TP4G James James 1937 [151,520,620,647] Insecta Asilidae Leptogaster Animalia Diptera 97 98 Arthropoda species coloradensis     Leptogaster coloradensis  James, 1937: 14.   Recognition characters:Grayish brown species; length 7–10 mm; mystax straw white; thorax silvery gray pollinose laterally and brown pollinose dorsally; scutellum gray pollinose lacking bristles, few white marginal setae present; abdomen gray pollinose laterally and brown pollinose dorsally; legs yellow with only the apical fifth of hind tibiae brown.  Distribution:PLATTE: Hartville, 19 June 1963( RJL). SHERIDAN: 31 May 1946( REP). Recorded from Wyomingby: Adisoemarto (1967); Geller-Grimm (2018).  Habitat:Grama-needlegrass-wheatgrass grassland vegetation type.  Ethology:Nothing known.  Prey:None known.