SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 99 
The Bees of Southern California. 
BY TI. D. A. COCKERELLE. 
Emphoropsis interspersa, n. sp. 
Male. Like E. floridana (Smith), but clypeus and lateral 
marks white; hair of cheeks long and white; hair of mesothorax 
strongly mixed with black; anterior femora with long white 
hairs behind; hind tibiw with white hairs on outer face; apical 
plate of abdomen extremely narrow. 
Hab.—California (no other particulars known); from the 
Cresson collection, loaned by Mr. Viereck. 
Emphoropsis semifulva, n. sp. 
Male. Like E. floridana (Smith), but laterai face-marks 
better developed (more filled in above); strip on mandibles 
and scape in front cream-color; hair of cheeks long, abundant 
and. white; hair of thorax above fulvous, that of mesothorax 
with black intermixed; hair of legs white, of middle trochanters 
and femora black (hind legs lost in type); hair of abdomen 
beneath largely pallid, at least in certain lights; apical piate 
broad, margined on each side with light fulvous pubescence. 
The hair of the region just above the hind coxe is black. 
Hab.—California (no other particulars known); from the 
Cresson collection, loaned by Mr. Viereck. 
The following table will be useful in the separation of the 
species of Emphoropsis. I give also Anthophora abrupta, which 
is easily confused with some of the forms of Emphoropsis. 
Entirely black, with black pubescence....... tristissima (Ckll.) 
Pubescence of thorax at least mainly light................. ile 
1. Abdomen with conspicuous entire light hair-bands..... .2. 
I Goment: without such: bands: tw aye t@ens ce oc sks aS. 
Peolvpeustall black \(feniales) -) 02... s as salviarum (CkIl.) 
Clypeus with a reversed T in white (males) salviarum (Ckl!.) 
3. Abdomen not bicolored, but with a rather thin pale 
WIMOESCEMCE Fas MOOK sam tamites Niger ay Anne 2eke 4. 
Abdomen bicolored, 1. e. black with the base hairy...... 6. 
4. Clypeus, supraclypeal mark, lateral face marks, and 
front of scape ereamy-white (males)... .johnsoni (Ckll.) 
Clypeus black, with at most (in miserabilis) a small 
INGARHE {SVOVORA ered 8 tasks tee Cee ER ege Schck as koh) 2) a a 5. 
©. Hair of thorax profusely mixed with black; of hind 
tibiz on outside white (females)...... miserabilis (Cr.) 
Hair of thorax yellowish-white, with a black pateh in 
middle; of hind tibizw on outside orange (females) 
ORE esi we Brak nateak Cho Ae oe johnsoni (Ckll.) 
