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 Neomochtherus hypopygialis (Schaffer) Asilus hypopygialis Schaffer, 1916: 68 . Recognition characters: Grayish black species; 15 mm ; mystax black above, white below; thorax yellowish-gray pollinose, with prominent median brown stripe narrowly divided; scutellum almost without vestiture, bristles 2, black; wings hyaline, slightly clouded towards apex; abdomen covered with grayish-brown pollen, setae on dorsum blackish, bristles and setae on sides and ventrally, white; legs reddish-brown, except outer side of femora; femora and tibiae with sparse setae. Distribution: PLATTE: Gray Rocks Ranch, Camp Guernsey , WANG, 22 July 2008 ( CSU , GMAD ). Recorded from Wyoming by Fisher & Wilcox (1997) , and Geller-Grimm (2018) . Habitat: Grama-needlegrass-wheatgrass grassland vegetation type . Ethology: Nothing known. Prey: None known.