168 
Psyche 
[June 
3. Middle tarsi with last two joints a little flattened 
and widened (Va., N. Y., Ohio) 
terminalis Van Duzee 
First joint of fore tarsi fringed with long black hairs 
on apical half, second joint on whole length (Penn- 
sylvania) junctus Van Duzee 
4. Posterior edge of pleurae and first three abdominal 
segments yellow (Connecticut) 
fl avicoxa new species 
Pleurae wholly black; second and third abdominal 
segments yellow, at least on the sides 5 
5. First and second abdominal segments wholly yellow, 
except very narrow anterior and posterior margins; 
hind femora almost wholly yellow (Connecticut) 
varicoxa new species 
Second and third abdominal segments with yellow 
on the sides; hind femora black above (Pennsyl- 
vania) metallicus new species 
Nematoproctus flavicoxa new species 
Male : Length 5 mm. ; of wing 4.5 mm. Face nearly as 
wide as the front, silvery white, its sides parallel; palpi 
longer than width of face, scarcely half as wide as long, 
yellow; front green, white pollinose; antennae black, first 
joint mostly yellowish, bare above, third joint small, about 
as long as wide, somewhat conical, arista inserted near the 
base ; occiput green with bronze reflections above the neck ; 
orbital cilia white, a few of the upper cilia black. 
Thorax blue-green, dorsum very shining, front slope 
grayish white pollinose, reddish coppery spots extend along 
the sides from the suture over the roots of the wing; 
pleurae white pollinose, posterior edge yellow; first three 
abdominal segments yellow, hind margins of these seg- 
ments narrowly black, the yellow portion shows very slight 
green reflections; fourth and fifth segments green with 
