Machimus sadyates (Walker)

Asilus sadyates Walker, 1849: 453 .

Recognition characters: Blackish species; 13–17 mm; mystax with numerous black bristles above and few white or pale yellowish ones below; thorax thinly clothed with gray dust that has a yellowish tinge above with a black middorsal stripe; wings hyaline with clouded apex and posterior border; abdomen black with white posterior border on each segment; femora black, tibiae reddish but usually with black markings on the outside; metatarsus reddish with brown apex, other tarsal segments either black or brown, reddish at the base.

Distribution: ALBANY: Pole Mtn., July 1969 (RJL). FREMONT: near Lander, 1,524 –2,438 m (5,000 –8,000 ft), Aug. (RM-UK).

Habitat: Sagebrush steppe and wheatgrass-needlegrass shrub steppe shrub and grassland vegetation type.

Ethology: Nothing known.

Prey: None known.