Machimus delusus (Tucker)

Lavigne, Robert J. & Dennis, Steve, 2019, Robber flies (Insecta: Diptera: Asilidae) of Wyoming, USA with keys to genera and species, Zootaxa 4662 (1), pp. 1-126 : 46

Machimus delusus (Tucker)

Tolmerus annulipes var delusus Tucker, 1907: 95 .

Recognition characters: Gray brown species; length 16–18 mm; mystax with numerous white setae below and a few black ones above; thorax gray brown, mid-dorsal stripe well defined, bristles on the posterior part prominent and black; wings hyaline, clouded at the apex and posterior border; abdomen gray brown with narrow posterior margin of each segment gray; front femora with the anterior side black, preapical band and the posterior side red; all tibiae and tarsi mostly red, tibiae with a stripe on the anterior side and the apex dark, apex of each tarsal segment brown, dark coloring of hind tibiae more suffused.

Distribution: Recorded from Wyoming by: Fisher & Wilcox (1997), and Geller-Grimm (2018).

Habitat: Grama-buffalo grass grassland vegetation type.

Ethology: Nothing known.

Prey: None known.