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 Leptogaster hesperis Martin Leptogaster hesperis Martin, 1957: 378 . Recognition characters: Grayish black species; length 11 mm ; mystax pale; thorax black, gray pollinose, male with ā€œVā€ shaped medial stripe, female with parallel median stripes, indefinite brown lateral stripes; scutellum gray pollinose; wings with more microtrichia apically than basally; abdomen black, dorsally brown pollinose, laterally and ventrally gray pollinose, posterior gray pollinose bands on segments 1ā€“5, short erect sparse setae more abundant laterally and posteriorly on segment 2; fore and mid legs yellow; posterior femora yellow, reddish brown apically, tibiae yellow basally, reddish brown anteriorly. Distribution: SHERIDAN: Sheridan, WANG, LTA, 2001a ( CSU , GMAD ). Habitat: Grama-needlegrass-wheatgrass vegetation type . Ethology: Nothing known. Prey: None known.