Holopogon atripennis Back

Holopogon atripennis Back, 1909: 312 .

Recognition characters: Blackish species; length 5–7 mm; mystax white; thorax gray pollinose, pilosity less dense than preceding setae on abdominal segment 1 only; wings brown; legs black, setae and bristles white on femora and tibiae, black on tarsi.

Distribution: PLATTE: 64 km NE of Laramie, 13 July 1937 (RHB-UK): Laramie Peak, Laramie Mtns.; 17 July 1964 (RJL, FRH).

Habitat: Grama-needlegrass-wheatgrass grassland vegetation type. Local population occurred in stand of mountain mahogany on edge of clearing, on mountainside.

Ethology: Rests on and forages from tips of dead branches of mountain mahogany 0.6– 1 m above the ground.

Prey: None known.