598 PROCEEDINGS OF THE ACADEMY OF [NOV., 



or less pale hair, punctures of first tergite spaced nearly as on the 

 dorsulum, second tergite with smaller, closer punctures than the 

 first tergite, indistinctly reticulate, length from base of punctured 

 portion to apex of second tergite : length of depressed margin down 

 the middle :: 28 : 8, third tergite sculptured much like the second, 

 fourth tergite less distinctly punctured but more distinctly reticulated 

 than the preceding tergite, fifth tergite dullish, reticulated and with 

 punctures that are nearly as large and as sparsely or more sparsely 

 distributed than on the first tergite, fimbria dark seal-brown, 

 pygidium slightly convex, nearly truncate at apex, blackish, without 

 an enclosure, indefinitely sculptured, base of pygidium pale brown. 



Andrena (Ptilandrena) pediculihirta new species. 



Type. — No. 4,028. The Academy of Natural Sciences of Phila- 

 delphia. 



Type Locality. — Southern California (H. K. Morrison). 



Female. — Length 9.5 mm.; body black, covered with pale ochreous 

 hairs; head with its facial line : transfacial line :: 59 : 73, axial 

 line : temporal line :: 28 : 15, covered with pale ochreous almost 

 whitish hair except in the upper half of the fovese and on the labrum, 

 front rather coarsely longitudinally striate, fovese with whitish hairs 

 on the lower half, the upper half with its hairs mostly pale seal-brown, 

 fovese at most a little more than half as wide as the ocellocular line 

 is long, attenuated below and extending to or close to the clypeal 

 line, hardly separated from the eye margin near its upper end, front 

 welted along the inner edge of fovea, joint 3 of antennae : 4 + 

 5 :: 9 : 8, joints 4-10 inclusive apparently thicker than long, the 

 succeeding joints longer than thick, terminal joint typical, an- 

 tennse blackish throughout, face shining, indistinctly reticulated, 

 rather indistinctly punctured, the punctures as many as three 

 puncture widths apart, clypeus convex with a narrow, dullish re- 

 ticulated clypearea down the middle, but not extending to the 

 apex, clypeus on each side of and below the clypearea reticulated 

 and punctured, more closely and distinctly punctured than the face, 

 elypeus decidedly elevated above the apical margin, the elevated 

 edge with a shining border that is nearly sculptureless, clypeus 

 thinly hairy its surface not at all hidden by the hairs, labrarea 

 truncate, nearly four times as wide at base as long down the middle 

 .and apparently exactly as long down the middle as wide at apex, 

 labrarea at base nearly half as wide as the labrum, the latter with a 

 fringe of golden brown hairs, malar line : joint 3 of antennae :: 15 : 8, 

 the elevated portion nearly as long as the depressed portion, mandi- 



