Pogonosoma ridingsi Cresson

Pogonosoma ridingsi Cresson, 1920: 214 .

Recognition characters: Black species; length 15–17 mm; mystax black with long white setae above and beside; thorax black, gray pollinose laterally; scutellar setae white; bristles black; wings brown, abdomen black, setae black except for white setae laterally on segment 1, dorsally on segments 1–2; legs black, bristles mostly black, setae mostly white, patch of black setae anteriorly at apex of femora.

Distribution: FREMONT: Muskrat Creek, Shoshoni, 22 June 1964 (FRH, RJL). Recorded from Wyoming by: Geller-Grimm (2018).

Habitat: Sagebrush steppe shrub and grassland vegetation type.

Ethology: Nothing known.

Prey: None known.