122 E. T. CRESSON. 



cence; thorax with whitish pubescence on sides and beneath, on mesothorax 

 and scutellum ochraceous, short and sparse on the disk; tegulse dull fulvous; 

 wings faintly dusky on apical margin; legs robust, black, the femora and four 

 anterior tarsi beneath fringed with long white pubescence; anterior coxee each 

 with a long black spine, their femora yellowish, with the base and upper and 

 lower margin within and apex above black, the lower edge compressed, dilated 

 and broadly rounded to tip, their tibiae mostly yellowish, their tarsi white, the 

 first four joints dilated, gradually less so to the fourth, the basal joint slightly 

 lobed at tip above, the upper edge sinuate and grooved within, the fringe within 

 black; intermediate tarsi slightly dilated, and fringed behind with long white 

 pubescence; posterior tarsi short and robust; abdomen subquadrate, sides sub- 

 parallel, densely punctured, clothed with short black pubescence, longer and 

 ochraceous on basal segment, and long and sparse on sides and tip, base of the 

 segments transversely depressed, apical margin of segments 1 — 5 fringed with 

 ochraceous pubescence, and where the segments are distended the base has a 

 band of whitish pubescence; sixth segment rounded at tip and entire; apical 

 segment with a short stout tooth on each side. Length .48 inch. 



Hah. — Texas, (Heiligbrodt). Three specimens. 



Megachile inanifesia. — % . — Black, head, thorax and base of abdomen 

 densely clothed with a long pale ochraceous pubescence, white on face, clypeus, 

 cheeks and thorax on sides and beneath; wings subhyaline, apical margin 

 dusky; legs with long white pubescence, that on the four anterior tarsi be- 

 neath very long; anterior coxse each with a long broad black spine, their 

 femora and tibiae more or less fulvous within, the former lobed at base beneath 

 and compressed and dilated towards tip to which it is broadly rounded, their 

 tarsi whitish, not broadly dilated, fringed within with short black hairs, at 

 base above a narrow lobe, hollow within, subsinuate above, and not quite reach- 

 ing to tip of second joint; posterior tarsi with long yellowish hair; abdomen 

 slightly narrowed to tip, clothed above, except base, with short pale pubescence, 

 slightly mixed with black, the apical margin of segments 2 — -5 with a narrow 

 fascia of short dense white pubescence; sixth segment slightly depressed 

 medially, the apical margin broadly rounded and coarsely serrate; apical seg- 

 ment clothed with long pale pubescence, a short broad tooth on each side, and 

 a long acute spine on the middle. Length .45 inch. 

 Hah. — Colorado, (Ridings). Five specimens. 



Megachile ingenua. — %. — Black, shining; head large, finely not 

 densely punctured, face and clypeus with long dense pale yellow pubescence, 

 that on cheeks short and white, that on vertex long, sparing and black; meso- 

 thorax sparsely punctured, thinly clothed with long pubescence, black on disk, 

 pale ochraceous at sides and before; on scutellum, metathorax and pleura 

 the pubescence is long and pale ochraceous or white; wings dusky on apical 

 margin; legs slender, black, clothed with whitish pubescence, yellowish on 

 tarsi; anterior coxse each with a short black spine, their tarsi whitish and 

 slightly dilated, the upper edge of basal joint grooved on the inside and fringed 

 with black hairs, beneath the joints are fringed with long white pubescence, 

 the second, third and fourth tipped with black; intermediate tarsi slightly 

 dilated; abdomen subquadrate, the first and base of second segments with 

 long pale ochraceous pubescence, elsewhere it is short and black except a 

 narrow white fasciae on apical margin of segments 2 — 5; sixth segment exca- 



