roo SOUTHERN CALIFORNIA ACADEMY OF SCIENCES 
G.-ChypeusimblackesGienialles)) iy ae eee cans seer ee te 
Gly peus mamily cor wholly le hin (Gnales)e ae 42s. eee 8). 
7. Hair of thorax above with black intermixed; of occiput 
pale~ butesome: blackwont vertex: eae er murihirta, Ckll. 
Hair of thorax above without black intermixed.......... 8. 
8. Hair of occiput and cheeks all black..... floridana (Smith) 
Hair of head pale, mixed with black on face and vertex ; 
hair of thorax. above bright orange-fulvous......... 
Bn acy Bele PURINE plane ancy are De ERENT e Ua GF Eh pascoensis (Ckll.) 
9. Sides of clypeus broadly black; seape all black; hair 
of thorax above with black intermixed. .murihirta, Ckll. 
Chypens among tanis/niancecanme cl = piri eee ieee etna 10. 
10. Hair of thorax above fulvous or ochreous, with black 
Cons pACWORIs liv, sammie vemiexe Cay eee eee ale 
Hair of thorax above without black intermixed........ 12: 
11. Hair of abdomen beneath all black; scape entirely 
lac erp Re ihre a. ay Rea tem Rh ee: faa eS interspersa, Cll. 
Hair of abdomen beneath largely pallid, at least in 
certain lights; seape white in front...... semifulva, Ckll. 
12. Seape all black; hair of cheeks black; hair of hind 
fibizs omvoutsides blacks: een] oe ae fioridana (Smith) 
Scape wunterorsellommishimlshcOmin 92 oe se eee ee Se 
13. Hair of cheeks white; hair of hind tibiw on outside 
SVL ag ea drr rd eo taba einen Whe morrisoni (Cresson ) 
nairsotcheelksr lackey aan) wes Anthophora abrupta, Say. 
Of all of the above, except the Anthophora, I have studied 
types or cotypes. 
Synhalonia belfragei subsp virgata, subsp, nov. 
Female. Length about 12 mm., with a broad abdomen. 
Black; head and thorax with abundant pale pubescence, white 
on cheeks, pleura and face, shghtly stained with ochreous on 
vertex and labrum, decidedly ochreous (without any black) 
on mesothorax and scutellum; mandibles above and below with 
some long golden or orange hairs; eyes (dry) dark grey- 
brown; facial quadrangle broader than long, but not exces- 
sively broad; vertex dullish, minutely roughened and pune- 
tured; antenne black, last joimt slightly longer than the one 
before; mesothorax dull (as in melissodes actuosa), minutely 
roughened and malleate; tegule very dark brown. minutely 
punctured; wings clear basally, the apical part distinctly dusky, 
nervures piceous; second submarginal cell very broad, receiving 
the reeurrent nervure near its end; wings quite hairy; legs 
black, hair on inner side of tarsi ferruginous; hair on apical 
half of middle tibizw pale fuscous; basal joint of hind tarsi 
broad, its large apical hair-tuft fuscous with a ferruginous base ; 
