No. 430.] FLOWERS AND INSECTS IN NEW MEXICO. 817 
curved at tips; eyes perfectly black; cheeks and sides of vertex with 
some long black hairs mixed with the pale; tegule black, with a 
slight green tinge; wings slightly dusky, nervures black ; second sub- 
marginal cell long; anterior edge of clypeus nodulose; clypeus and 
front as densely punctured as is possible. Mr. Titus adds: * A very 
distinct species; apical margin of second ventral segment is different 
from any species heretofore seen. The antennz are crenulated slightly 
beneath, and this gives them slight resemblance to males of Zgma7ia 
section, but the species does not belong there. It would be well to 
note the hairiness of the labial palpal joints 1 and 2 
Osmia chlorops Cockerell and Titus, x. sf. 
4$. Length about ro mm., brassy green, with bluish tints on abdomen 
and thorax; the abdomen shining, the head and thorax densely punc- 
tured; pubescence white, long and abundant on face; legs strongly 
tinged with green. Head large, face almost golden; eyes (in life) 
green, black anteriorly ; mandibles black; antennz long, black, crenu- 
lated ; first joint of flagellum covered with a seal-brown velvety pile ; 
tegulz with greenish punctured margins ; wings somewhat dusky ; hind 
tarsi with the basal joint broadened distally, and covered on the inner 
side with short brown-black hair; hind tibial spurs black, curved at 
tips; sixth dorsal segment of abdomen notched ; apical segment deeply 
and broadly notched; third ventral segment deeply and broadly emar- 
ginate, the edges of the emargination fringed with short shining hairs. 
