Cyrtopogon albifrons Wilcox & Martin

Cyrtopogon albifrons Wilcox & Martin: 83.

Recognition characters: Black species; length 9 mm; third antennal segment black; mystax and setae of front, ocellar tubercle, vertex, and along eye margins black, long setae on upper occiput, beard, and setae below on the proboscis white; mesonotum grayish-white pollinose, especially anteriorly with the narrow central stripes and the intermediate spots brown and faintly visible; scutellar setae black; wings uniformly infuscated with dark brown veins; abdomen shining black with mostly black setae; male with segment 1 and segments 2–5 posterior fasciae and female segments 2–5 posterior fasciae narrowly to broadly interrupted; legs black, long white setae on femora, tibiae and tarsi with black setae, claws black except reddish basally.

Distribution: TETON: Grand Tetons, 24 June 1938 (ECVD) (specimen in the CAS); Jackson Hole, 28 June 1938 (ECVD) (two specimens in CAS); Hoback Camp, Grand Tetons, 18 June 1965 (MWS) (three specimens in CAS).

Habitat: Douglas fir forest (clearings within the forest where shrubs and grasses are dominant) and sagebrush steppe vegetation types.

Ethology: Nothing known.

Prey: None known.