Pomona College, Claremont, California 59 
the disc; base of metathorax roughened but glistening; legs densely 
hairy, the hair pale ochreous-tinted; hind tibia and basitarsi with a 
very broad loose scopa, hair on inner side of hind basitarsi pale 
ferruginous; tegule piceous; wings rather short, faintly grayish, 
with a milky appearance in certain lights; greater part of abdomen 
densely covered with felt-like very pale ochreous pubescence, but 
apex with pale ferruginous; base of second segment with the hair 
so thin as to leave a dark band; first segment bare in middle, finely 
punctured; hind margin of first segment (tegument) broadly red- 
dened, and the second and third the same, only in these the color 
is hidden by the pubescence; venter with bands of red-golden hair 
alternating with pale. 
Habitat: Claremont, California (Baker; Pomona coll. 153). 
Very like Melissodes stearnsi Ckll., which is to be called Exoma- 
lopsis stearnsi, but readily distinguished by the shorter and rela- 
tively broader marginal cell, the well though finely punctured disc 
of first abdominal segment, and the much shorter third antennal 
joint (length 480 microns in stearnsi, 350 microns in velutinus). 
The apical plate of abdomen is much broader than in stearnsi, with 
straight sides. Both species look like some Xenoglossodes, from 
which the most conspicuous superficial distinction is the bare pol- 
ished disc of mesothorax. A second specimen of E. velutinus bears 
the number 147. 
Exomalopsis melanurus sp. n. 
@ Length about 8 mm.; black, abdomen oblong; light hair ochre- 
ous-tinted dorsally, dull white below; head broad; eyes pale grayish- 
green; mandibles red in middle; clypeus densely and strongly punct- 
ured; face and front with grayish-white hair; vertex shining; flagel- 
lum dusky ferruginous beneath except at base; mesothorax and 
scutellum with sculpture and arrangement of hair as in E. veluti- 
nus; legs with long pale hair, the copious scopa of hind legs wholly 
pale; a black brush at end of hind basitarsi; tegule piceous, wings 
faintly dusky; first abdominal segment with long pale hair, the 
broad hind margin bare except at sides, where there is a dense 
patch of hair, extreme margin (tegument) pallid; segments 2 to 4 
with very broad dense felt-like ochreous hair-bands, the basal part 
of the segments exposed and appearing black; fifth segment and 
