274 _ ENTOMOLOGICAL NEWS. [June, ’08 
Although running to O. ovalis Adams, these specimens differ 
particularly by reason of the double length of the second com- 
pared with the third costal sections of the wings, and by the 
rather unusual appearance of an almost bristly front. 
Oscinis dissidens n. sp. 
Texas,—Plano, Collin county; June, 1907, one specimen 
taken in an experiment cage in oat field. Type deposited in the 
U. S. National Museum. 
Mostly shining black; face below the frontal triangle, together with 
the oral region and mouthparts, excepting the palpi, venter of abdomen 
largely and dorsal base obscurely, knees of anterior and middle legs 
slightly, tibie of middle legs obscurely, all trochanters and the tarsi 
except at tip, and halteres, yellowish. Frontal triangle extending across 
the vertex, polished, reaching two-thirds of the distance to the an- 
tennx, adjoining outer edges of front dull, front projecting over the 
antennal insertions. Antennz dull opaque, third joint inwardly 
sericeous, arista pale and faintly pubescent. Mesonotum with faint 
pale pubescence, two fine sulci running forward from posterior margin, 
scutellum with a pair of small terminal bristles. 
Wings clear, first and second costal sections equal in length, third 
and fourth longitudinal veins parallel. Length scarcely more than 
I mm. 
Runs to, and agrees in many respects with O. obscura ac- 
cording to Mr. Coquillett’s description, but the following dis- 
tinguishing features are noted: greater part of the front yel- 
low, tibiz of fore legs black instead of yellow, and the second 
longitudinal vein joins the costa at more than half the distance 
instead of midway between the apices of the first and rhird 
longitudinal veins. 
Notes on the Psychodidae. 
By LEonArD HAseMAN, University of Missouri. 
Since the completion of my monograph of the North Amer- 
ican Psychodidz, which appeared in the Transactions of the 
American Entomological Society, Vol. XX XIII, I have been 
carefully watching for any new species and life histories which 
may turn up in this region. 
The extreme minuteness and inconspicuousness of the adults, 
as well as the immature stages of these flies, makes their dis- 
covery in nature possible only by very close and persistent ob- 
