56 Journal of Entomology and Zoology 
in front, brownish-ferruginous; anterior femora with a whitish 
spot just before apex; tegule very dark reddish-brown; wings long, 
stigma (which is large), and nervures piceous; apex of wings 
strongly dusky; b. n. falling short of t. m.; abdomen dull, only the 
extreme margins of the segments glistening; shape of abdomen 
rather long-oval, wide in middle; apical plate deeply notched; ven- 
ter, except at base, marked with white. 
Habitat: Mountains near Claremont, California (Baker; Po- 
mona coll. 171). A distinct little species, easily known by its 
color. It falls close to N. obscurella Fowler, but that is larger 
(7.5 mm.), with legs largely yellow, including the middle and hind 
basitarsi, which are entirely black in melanosoma. 
Nomada subvicinalis Cockerell. 
Two males from Claremont (Baker) differ a little from the type. 
One has small yellow spots at anterior corners of scutellum, lateral 
margins of mesothorax very narrowly reddish, lateral face-marks 
continued as slender lines part way up sides of front, and apical 
plate of abdomen quite broad. The other lacks the yellow patch 
on second ventral segment. 
Nomada civilis Cresson. 
Two males from Claremont (Baker) are peculiar for having the 
apical plate of abdomen entire. One is about 9 mm. long, and has 
large yellow spots on the metathorax. The other is about 7 mm. 
long, and has the metathorax all black. N. civilis is one of the 
most variable of bees, but it appears difficult to satisfactorily define 
subspecies. N. edwardsii Cress. is another yellow and black species 
found by Baker at Claremont. 
Nomada erythrospila sp. n. 
é Length about 7 mm.; long and slender; head and thorax 
black, with white hair, abundant on face, pleura and sides of meta- 
thorax; head transversely oval; front, mesothorax and scutellum 
dull and rugose; mandibles simple, pellucid white at base, fulvous 
in middle, and dark at apex; labrum creamy-white, covered with 
white hair; lower margin of clypeus and lower corners of face 
(with a linear extension upward along orbits) cream-color; an- 
