Neomochtherus montanus (Hine) Asilus montanus Hine, 1909: 149. Recognition characters: gray species; length 13 mm; mystax with few bristly, mostly white setae and a few black ones above; thorax gray with mid-dorsal black stripe divided more anteriorly; scutellum with two black marginal bristles; wings clear hyaline; abdomen with grayish dust, most prominent on the posterior margins of the segments that are preceded by 2–3 small bristles; legs mostly reddish, anterior side of femora, apex of tibiae and tarsi fuscous. Distribution: JOHNSON: S Fork of Crazy Woman Creek, 27 July 1964 (HBL) (specimen in CAS). Habitat: Grama-needlegrass-wheatgrass vegetation type. Ethology: Nothing known. Prey: None known.

Published as part of Lavigne, Robert J. & Dennis, Steve, 2019, Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species, pp. 1-126 in Zootaxa 4662 (1) on page 54, DOI: 10.11646/zootaxa.4662.1.1, http://zenodo.org/record/3383448