Earomyia aberrans

Male and Female. — Similar in colour to nigrociliata.
Frons of male with two series of long hairs on centre oi interfrontalia. of
female with a few hairs in addition to the two series; frontal lunule bare; third
antennal segment but little longer than broad, about L5 at most; cheek as in
nigrociliata. Upper part of orbits microscopically diagonally striate, with a
silky appearance which is quite different from the broader glossy orbits of
nigrociliata. Thorax as in that species but usually there are no hairs between
the apical scutellar bristles. Legs as in nigrociliaia^ Second costal division
shorter than in that species, the inner cross-vein almost below apex of first.
Ovipositor very slender, the apical hairs very short.
Length 3-3.5 mm.

Type.— Female, Parker, 111., April 17, 1914, (Hart and Malloch). Allotype,
Algonquin, 111., May 4, 1895, (Nason). Paratypes, male, Carlinville,
111., determined as polita Say by Williston, (C. Robertson); female. Spruce
Brook, Newfoundland. August 8-12 (Amer. Mus. Nat. Hist.); one male and
one female, reared from heads of bull thistle, Elphinstone, Man.,
collected July 27, 1906, emerged in laboratory February 25, 1907, (W. A.
Burman). Type in collection of Illinois State Natural History Survey.