158 
Psyche 
[June- August 
Gymnophora Macquart. 
Quite recently Schmitz has distinguished four species of 
this genus from Europe (Jaarb. Naturhist. Genootsch. Lim- 
burg, for 1919, p. 132. 1920). All of these have heretofore gone 
under the name of Gymnophora arcuata Meigen, as have also 
the North American members of the genus. On examining my 
collection in the light of Schmitz’s paper, it is evident that the 
true arcuata does not occur in eastern North America, although 
I have a single male from Tacoma, Washington (A. L. Melander) 
which seems to be indistinguishable from a European specimen 
which according to Schmitz’s description and figure is arcuata. 
Like many palseartic forms, it is probable that this one extends 
into the United States only along the Pacific Coast. 
All other specimens, ranging from Kansas to Wisconsin 
and eastward are apparently Gymnophora quartomollis Schmitz 
(t. c., p. 133). 
Aphiochaeta velutinipes sp. nov. 
9 . Length 1.7 mm. Piceous, the abdomen above and the 
front almost black; humeri brown; the pleurae becoming much 
lighter below till they are pale brown next to the coxae, antennae 
fuscous; palpi brownish yellow; legs pale brownish yellow on 
the coxae but darker beyond, especially the four posterior pairs; 
wings hyaline, venation fuscous; halteres light brown. Front 
quadrate, with distinct ocellar tubercle and median frontal 
groove. Two pairs of proclinate bristles, the lower pair smaller 
and only two-thirds as far apart as the upper ones; lowest row 
of reclinate bristles forming a pair at each side of the front with 
the lateral bristle close to the eye and far above the inner one 
which is on a line with the lower post-antennal one, and half-way 
between it and the eye-margin; middle froiital row curved down- 
wards medially, its median bristles farther from one another 
than from the lateral bristle which is very close to the eye; 
ocellar row of four. Antennae small; arista conspicuously pubes- 
cent, one-third longer than the width of the front. Palpi of 
