SOUTHERN CALTFORNIA ACADEMY OF SCIENCES 31 
Anthophora urbana, Cresson. 
Redondo, (Davidson). Also at Los Angeles. 
Anthophora urbana, Cresson. 
Los Angeles, (Davidson). The male is known from that of 
edwardsii and angustior by having only black hair on the seec- 
ond dorsal abdominal segment, and also from edwardsii by the 
deep lateral notching of the yellow of the clypeus. 
Synhalonia angustior, (Ckll.) 
Los Angeles, (Davidson). Described as a variety of ed- 
wardsii, but apparently a valid species. One specimen: from 
Los Angeles has pale hair-bands on segments 4 and 5 of ab- 
domen; it may represent a distinct species, but I think not. 
Melissodes lupina, Cresson. 
This Californian species has remained unknown to me, but 
from a study of Cresson’s description, I came to the conclusion 
that it was doubtfully distinct from M. agilis. Mr. Viereck, 
at my request, has kindly compared the types of the two 
species, and reports as follows: 
“*T can see no tangible specific difference between melissodes agilis 
and lupina other than color. The former has the nervures and the mar- 
gins of the abdominal segments pale, the nervures amber-testaceous to 
brownish-testaceous, the borders of the abdominal segments whitish 
testaceous; in the latter these parts are dark, brown or brownish.’’ 
Colletes californica, provancher. 
Male. Length about 8 mm., black, with long pale yellowish- 
grey hair on face and thorax, and black hair on upper part of 
head, cheeks, pleura, abdomen and legs, except anterior femora, 
which have very long pale hair beneath; head broad above, 
rapidly narrowing below; mandibles grooved, bidentate, slight- 
ty reddish apically; labrum prominent, shining, with four slight 
apical depressions, producing a crenulate appearance in some 
Lights, but mvisible im others; antenne black, the flagellum 
faintly brownish beneath; mesothorax closely punctured, with 
a shining median area; dorsal area of metathorax very narrow 
(antero-posteriorly), divided by little ridges into more or less 
square areas; tegule dark, wings faintly dusky, with the stigma 
and nervures very dark; second recurrent nervure with a mod- 
erate double curve; second submarginal. cell very broad, es- 
pecially below, with the first recurrent nervure entering about 
the end of its first third; basal nervure falling some distance 
