30 
Psyche 
[Mar. 
Volucella impressa n. sp. 
This species is related to pinhusi Curran and aster 
Cnrran but is easily distinguished by the wholly black 
abdomen besides other differences. There is a diffuse 
brown tinge in the middle of the wing, and a narrow 
brown stripe between the face and cheeks. Length 10 mm. 
Male. Head: the face, except the region beneath the 
antennae, and cheeks, except the posterior part, light cof- 
fee brown in color without any medial black stripe. There 
is, however, a slender brown stripe from the eye margin 
to the epistoma. The lower face is somewhat conical and 
slender. The low tubercle is thickly black pilose, the 
pile upon the sides of the face reddish yellow. Beneath 
the antennae the face is blackish with pale yellow pollen 
which continues thinly but widely down to the epistoma. 
The front is sepia brown becoming black near the junc- 
tion of the eyes with thin, pale brownish yellow pollen. 
The frontal and vertical pile is black. The eyes are not 
flattened, the upper facets scarcely enlarged, the ocular 
pile dense and sepia brown in color, not black. The an- 
tennae are reddish brown throughout, the third segment 
more narrow on the apical half ; the arista is yellowish 
basally, blackish apically, with about seventeen rather 
short rays. Thorax: the mesonotum and scutellum, ex- 
cept for the humeri and post calli, are entirely black with 
strong greenish to bluish opalescent color and coppery 
reflection where the light strikes. The humeri and post 
calli are light brownish yellow. The mesonotal, pleural 
and scutellar pile is black and rather dense and fine ex- 
cept for four longitudinal stripes of nearly white pile on 
the mesonotum which is most readily seen in posterior 
view. These stripes of pile extend fully three-fourths 
the length of the mesonotum with the outer pair wider. 
There are a very few pale hairs at the extreme base of 
the scutellum, but its ventral fringe is black. The bris- 
tles of the thorax are black ; there is one bristle upon the 
mesopleura, three on the notopleura, three above wing, 
three on the post calli, none in front of the scutellum and 
ten upon the margin of the scutellum. The scutellum is 
concolorous with the mesonotum with a very deep, trans- 
