Dolichopus beatus Van Duzee, 1921: 63

Potential infected species: Dolichopus bisetosus Van Duzee, 1921: 77 .

Dolichopus beatus was described from one male collected at Craig Mountain, Idaho, USA. The male is described as having a wide face and a very small hypopygium that is “about the size of the fifth abdominal segment”. Eight males of the putative host species, D. bisetosus, were also collected at Craig Mountain, Idaho. Both species belong to Group B of the North American species of Dolichopus (Van Duzee 1921) and differ in width of the face, size of the postabdomen, and extent of yellow on the middle femur (in D. beatus the femur is darker and more like the female which has black femora).