386 PROCEEDINGS OF THE NATIONAL MUSEUM vol. loi 



than in pallidifovea, much broader than long, broadly rounded or 

 truncate at apex, or sometimes slightly emarginate at the middle 

 of the apex. Pubescence much as in pallidifovea, varying from 

 ochreous to fulvous on vertex and notum of thorax. Hair of meso- 

 scutum long, erect, without short hair. (In pallidifovea hair of 

 mesoscutum rather short and interspersed with longer hairs.) 

 Usually some inconspicuous blackish hairs present on vertex, 

 especially behind the summit of eyes. Facial f oveae darker than in 

 pallidifovea, seal brown above and whitish or ochreous at lower 

 end. Tergites 2 to 4 each with a broad, dense apical hair band, 

 interrupted medially on tergite 2. Disk of tergites 1 and 2 nude, 

 that of 3 and 4, and base of tergite 5, with very short, subappressed 

 black hair. Apical fimbria brown. Length 9-12 mm.; anterior 

 wing 7.5-8 mm. 



Male. — Very similar to the male of A. pallidifovea, but antennal 

 joint 3 distinctly longer than 4 and slightly longer than 5, joint 4 

 being barely longer than thick. Pubescence pale ochreous to whit- 

 ish, with some long black hairs on sides of face and behind summit 

 of eyes. Hair bands on tergites 2 to 5 weak, those on segments 

 2 and 3 broadly interrupted at the middle. Genitalia virtually the 

 same as in pallidifovea. Length 7.5-10 mm. ; anterior wing 7 mm. 



Types. — U.S.N.M. No. 59276. Holotype (female), allotype, and 

 14 paratypes (7 males, 7 females), San Francisco, Calif., April 

 13, 1913; 8 females (paratypes), San Geronimo, Marin County, 

 April 23, 1913; 11 females (paratypes). Mount Hamilton Range, 

 Santa Clara County, April 26, 1913 (J. C. Bridwell). 



Other records. — Four females Russelman Park, Contra Costa 

 County, on Baeria, April 26, 1942 (E. G. Linsley) ; 1 female, Kern 

 County, April 1939 (F. T. Scott) ; and 1 female, Mendocino 

 County (E. R. Leach), in the collection of the Citrus Experi- 

 ment Station. 



ANDRENA CHESPERANDRENA) ESCGNDIDA Cockerell 



Andrena escondida Cockerell, Ann. Mag. Nat. Hist., ser. 11, vol. 2, p. 146, 

 1938 (male). 



This was described from Santa Catalina Island. The female 

 has been recorded by Cockerell but not described. For purpose of 

 comparison with the following new species, it is now briefly 

 characterized as follows : 



Female. — Black, without any distinct metallic tinge. Head and 

 thorax dull, the lower part of mesopleura, metapleura, and pleura 

 of propodeum more shining. Clypeus with sparse, minute, indis- 

 tinct punctures. Frons striate. Mesonotum tessellate, becoming 

 more shiny on posterior middle of the scutum and base of scutel- 

 lum, and finely, strongly, and closely punctured. Basal area 



