BEES OF THE FAMILY ANDRENIDAE— TIMBERLAKE 403 



depressions, especially on tergite 4, but the depressions them- 

 selves hairless. Apical fimbria brown, overlaid with paler hairs. 

 Facial foveae whitish and slightly tinged with brown at upper 

 end. Length 10.5-12 mm.; anterior wing 8-8.4 mm. 



Male. — Similar to female, especially in color of pubescence and 

 in sculpture. Black, the flagellum and small joints of tarsi a little 

 reddened. Head broader than long and wider than thorax. Cheeks 

 very broad and subangulate, the angle opposite the upper end 

 of the anterior third of eyes. Mandibles rather long, decussate, 

 with the inner tooth about the usual distance from apex. Process 

 of labrum large, little elevated, the truncated apex slightly 

 foveato-emarginate. Antennae moderately long, the third joint 

 as long as the next two together. Clypeus opaque, with fine, 

 dense, obscure punctures. Frons opaque, not striated. Mesoscutum 

 a little less closely punctured and more shining on posterior mid- 

 dle than in female, and metapleura and sides of propodeum duller. 

 Abdomen rather shining; comparatively sparsely and much more 

 minutely punctured than in female. The impunctate, finely tes- 

 sellate, and hairless apical margins broad and conspicuous on 

 tergites 1 to 5. Genital armature similar to that of A. osmioides, 

 but parameral lobes of stipites less deeply concave on outer sur- 

 face, the apical oblique truncation a little shorter, with the angles 

 on each end of the truncation less broadly rounded. Apical process 

 of ninth sternite slightly dilated at tip, the apex rounded, with 

 a small median notch. Pubescence much longer and denser than 

 in female, copious on face and cheeks but not concealing surface. 

 Hair of abdomen longer and sparser in female, and rather long 

 on the first tergite. Pubescence cinereous, not darkened on legs 

 and at apex of abdomen, but slightly tinged with brown on ver- 

 tex and behind summit of eyes. Hair on inner side of basitarsi 

 dark ferruginous. Length 8-10 mm. ; anterior wing 6.4-7 mm. 



Tl/pes.— U.S.N.M. No. 28526. Holotype (female), San Ber- 

 nardino County, Calif., in May (Coquillett). Allotype, in the col- 

 lection of the Citrus Experiment Station, taken at Riverside March 

 14, 1939. 



Paratypes in the collection of the University of California at 

 Riverside and at Berkeley: 12 males, 32 females. Riverside, the 

 males taken from March 5 to April 6, the females from March 

 13 to May 19; 7 males, 26 females. The Gavilan, Riverside 

 County, April 7 to May 4; 4 females, II/2 miles west of Perris, 

 April 7 to May 4 ; 1 male, 7 females, 4 to 41/9 miles west of Perris, 

 March 27 to April 10; 4 females, Ortega Highway, Santa Ana 

 Mountains, overlooking Elsinore, April 28; 2 females, 6 miles 



