Pegoplata abnormis (Stein 1920)

Pegomyia rectifrons Huckett
Pegomyia rectifrons Huckett, Trans. Amer. Ent. Soc, lxv, p. 19, 1939. Pegomyia abnormis var. Stein, Arch. f. Naturgesch, (1918), lxxxiv, (A), hft. 9, p. 67, 1920.
Stein (1920) regarded this species as a variant of the described form abnormis, in which the eyes of male are abnormally widely separated for a species belonging to this genus. In the male of rectifrons the eyes are not unusually widely separated, appearing more normal in this respect than abnormis. Under the circumstances it seems to me possible that the male of abnormis may represent the true variant, a point that cannot be satisfactorily verified with the limited material at present available for study.
The form rectifrons, which I know only in the male sex, may be distinguished from Stein's abnormis by the structure and bristling of the head and by the uniform, grayish black color of the abdomen. Another allied species is anabnormis, which resembles rectifrons but differs in that the humeral callosities and scutellum in male are blackish, concolorous with mesonotum, third antennal segment entirely blackish, and hind coxae have no hairs on caudal surface.
Idaho: i d Mountains, Moscow, July 10, (R. C. Shannon), type, [A. N. S. P.].