BEES OF THE FAMILY ANDRENIDAE— TIMBERLAKE 381 



Female. — Black, the flagellum beneath, and usually the legs, 

 nearly uniformly reddened. Wings as in the male. Head as broad 

 as long, the hypostomal carinae very high and even. Clypeus large, 

 strongly projecting, the apical margin flaring and prominent. 

 Facial foveae rather narrow, a little wider than half the distance 

 between eye and lateral ocellus and extending slightly below an- 

 tennae. Antennal joint 3 barely longer than joints 4 plus 5. 

 Process of labrum much broader than long, the sides sloping, 

 the apex foveato-emarginate. Clypeus tessellate, a little dullish, 

 and rather closely punctured. Frons beneath the foveae closely 

 and finely striate. Mesoscutum shining, closely and finely punctured 

 and tessellate on the anterior part, its posterior middle and the 

 scutellum polished and more sparsely punctured than the remain- 

 der of mesoscutum. Propodeum dull and finely rugulose, the enclo- 

 sure similarly sculptured. Abdomen almost polished and provided 

 with minute, close, setigerous punctures. Pubescence ochreous or 

 f ulvo-ochreous, moderately dense on the thorax. Apical hair bands 

 present on tergites 2 to 4, covering the apical depressions and more 

 or less interrupted on middle of tergite 2. Tergite 1 with similar 

 hair on each side of apical margin. Disk of tergites 2 to 4 with 

 extremely short, fine, appressed dusky hair in front of the bands. 

 Apical fimbria usually more tawny or more fulvous than pubes- 

 cence of body. Hair of legs concolorous with body, the apical tuft 

 of hind femora pale chocolate color, and hair next to the knee 

 plate more or less blackened. Scopal hair of hind tibiae moder- 

 ately, but rather obscurely, plumose. Length, about 10 mm.; an- 

 terior wing, 7.5 mm. 



Collecting records. — One male, Corvallis, Oreg., June 12, 1925 

 (Scullen) ; 2 females, Corvallis, collecting pollen from wild rose, 

 June 9, 1909 (Bridwell) ; 2 females, Corvallis, June 19, 1921 (col- 

 lector unknown) ; 1 female. Union, Oreg., 2,716 feet, June 11, 1926 

 (Scullen). 



Two females from Tahquitz Valley, San Jacinto Mountains, 

 Riverside County, Calif., July 17 and 23, 1912 (Bridwell), seem 

 to be the same species but have the clypeus more sparsely punc- 

 tured, the pubescence uniformly dull fulvous, and hind tarsi and 

 small joint of the other tarsi clear ferruginous. The pollen col- 

 lected by these females appears to be identical with that carried 

 by the females, from Corvallis, taken on wild rose. 



ANDRENA (PTILANDRENA) LAYIAE. new species 



This differs from other similar species with a metallic color in 

 having the green color confined to the abdomen. The tibial scopa 

 is moderately plumose. 



