68 Harry Scott Smith 
black, blood-red at tip, which is acute and with a notch just before the 
apex. Pronotum with white pubescence above. Mesonotum sparsely punc- 
tured in front, closely so posteriorly, scutellum practically impunctate on 
disk, postscutellum clothed with long gray pubescence; mesopleura closely 
and distinctly punctured all over and with a coat of silvery pubescence. 
Metathorax rounded, uniformly rugose, the sculpture not very coarse, and 
with a strong median furrow, sparsely clothed with white pubescence, 
metapleura smooth basally. Petiole long, slender, almost twice as long as 
first segment, and almost as long as hind femur, trochanter and coxa com- 
bined,. width about one-eighth of length, with a sulcus above on each side, 
convex in the middle and with a strong sulcus laterally. Abdomen with 
first three segments red, remaining ones black, dorsally impunctate, ven- 
trally with a few distinct punctures; pygidial area lacking, apical segment 
conical, clothed with a few light hairs. Legs black, all tarsi, tips of femora 
more or less, anterior and intermediate tibiae, and base of hind tibiae fer- 
ruginous. Wings clear hyaline, iridescent, second cubital cell narrowed 
one-half above. 
3. Unknown. 
Type, Glen, Sioux county, Nebraska, altitude 4,000 ft. (H. S. 
Smith). Described from twenty-four specimens from the above 
locality and from Broken Bow and Brown county, taken during 
July and August on flowers of Solidago and Helianthus spp. Re- 
lated to granulosa by the absence of a pygidial area. 
Mimesa proxima Cresson. 
1865. Mimesa proxima Cresson, Proceedings of the Entomological 
Society of Philadelphia, iv, p. 488. 
1898. Psen proximus Fox, Transactions of the American Entomolog- 
ical Society, xxv, p. 16. 
Several female specimens of this species were taken at Glen 
during the month of August. Easily separated from the follow- 
ing by the differently shaped abdomen. 
Mimesa unicincta Cresson. 
1865. Mimesa unicincta Cresson, Proceedings of the Entomological 
Society of Philadelphia, iv, p. 488. 
1898. Psen wnicinctus Fox, Transactions of the American Entomo- 
logical Society, xxv, p. 15. 
Three females, also from Sioux county. Apparently not quite 
so common as the above. 
Mimesa nebrascensis, n. sp. 
¢. Length 9.5 mm. Head black, front and clypeus clothed with quite 
dense pubescence, the latter bare on disk; clypeus with punctures fairly 
390 
