SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 15 
Anthophora curta, Provancher, subsp. nov. petrophila. 
Female; length about 744 mm.; flagellum, except first joint, 
dark rufous above and bright ferrugimous beneath (the flagel- 
lum is colored as in male A. flexipes), last joint subtruncate; 
eyes pale greenish-ochreous, probably green in life; face-marks 
pale lemon-yellow, the supraclypeal mark reduced to an incon- 
‘spicuous streak; hair at apical middle of fifth abdominal seg- 
fent dark fuscous. 
Rock Creek, Cal., one collected by Dr. Davidson. Easily dis- 
tinguished by the color of the antennae, but probably only a 
geographical race. This belongs with the common species of 
New Mexico, which I have always called A. maculifrons, Cres- 
son, it having been so determined for me by Mr. Fox. I find, 
however, that it is quite distinct from the true maculifrons, 
especially in the structure of the apex of the male abdomen, 
and it agrees very well with A. curta, Provancher. The insect 
of New Mexico is not petrophila, but so far as comparison with 
the description shows, true curta. 
The real A. maculifrons was taken by Dr. Davidson at Los 
Angeles. Mr. Viereck has kindly examined Cresson’s type, 
and reports that in the male the distance between the apical 
processes of abdomen at base is decidedly less than the length 
of the processes, which are rather parallel-sided. 
- Anthophorula coquilletti (Ashmead) 
The specimens examined are females, but I feel confident 
that they belong to this species, of which only the male has 
been described. In the male the elypeus is yellow; Anthoph- 
orula is a group separated from Exomalopsis principally by this 
fact, and it is a matter of opinion whether it deserves full 
generic rank. 
Similarly, Dasiapis is closely allied to Diadasia, but has a 
light elypeus in the male. Two species are known, separable 
thus: 
Male about 10mm. long, with elypeus white (New Mex- 
TOO) RAPS Gee Ge a ts PSF D. ochracea, CkIl. 
Male smaller, with eclypeus yellow (Mexico, California ) 
aie ae ee ee D. olivacea (Melissodes olivacea, Cress.) 
Diadasia diminuta, Cresson. 
The single female from Palm Spring is not precisely typical, 
and it is possible that a good series would indicate a geograph- 
ical race. 
Diadasia rinconis, Ckll. 
A larger form (D. rinconis opuntiae, Ckll, 1901) is common 
on the bluffs at San Pedro, visiting the flowers of Opuntia 
(lindheimeri var?) littoralis (Engelm.) 
(To ‘be continued.) 
