Loew, 1847: 488 Heteropogon maculinervis H. rubidus H. senilis H. wilcoxi 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 8V4CN 1718284 Loew Loew. 1847 [151,385,1402,1428] Insecta Asilidae Heteropogon Animalia Diptera 74 75 Arthropoda genus     Heteropogon  Loew, 1847: 488. Species found in Wyoming:  Heteropogon maculinervis, H. rubidus, H. senilis, and  H. wilcoxi.   Key to Species(adapted from Wilcox 1965a) 1 Scutellum with marginal bristles......................................................................... 2 - Scutellum without marginal bristles...................................................................... 3 2 Mystax yellowish white, femora black on upper side only.....................................  Heteropogon rubidus- Mystaxblack with few white setae above, femora completely black.........................  Heteropogon maculinervis3. Abdomen largely bare of pollen dorsally....................................................  Heteropogon senilis- Entiremale abdomen and segments 1–5 of female abdomen densely whitish gray pollinose..........  Heteropogon wilcoxi