1916.] NATURAL SCIENCES OF PHILADELPHIA. 591 



anterior edge, hairs of clypeus forming a moustache that nearly 

 obscures the sculpture, clypcarea wanting, malar space virtually 

 wanting, represented by not much more than a shining line, 

 joint 3 of antenna? : joint 4 :: 7 : 3 and : joints 4 + 5 :: 7 : 8, 

 joint 6 and succeeding joints distinctly longer than wide, joint 4 

 distinctly wider than long, antennae blackish brown throughout, 

 dullish, end joint typical, clypearea semicircular emarginate to the 

 base, appearing as a nearly triangular tubercle on each side of the 

 emargination, at most the labrarea is hardly half as long as wide at 

 base, otherwise the labrum is much the same as in the female, mandi- 

 bles robust not so greatly attenuated as in typical Andrena, simple, 

 black, apical half mostly reddish castaneous, palpi apparently as in 

 the female; thorax as in the female except that the dorsulum is 

 mostly coppery and not so distinctly or closely punctured, nervulus 

 more nearly interstitial but still received by the median cell, stigma 

 and costa dark brownish,, the stigma a brighter brown than the costa, 

 otherwise the wings are similar to the wings in the female, legs black, 

 with whitish hairs even on the inner side of metatarsi and all over 

 hind tibiae, the latter at most distinctly less than twice as wide as 

 greatest width of hind metatarsi, otherwise the legs are much the 

 same as in the female; propodeum as in the female except that the 

 upper aspect both outside and inside the enclosure is rather finely 

 reticulated and that the rather coarse rugce on each side of the median 

 longitudinal carina in the female are here represented by poorly 

 developed ruga? on each side of the median longitudinal carina; 

 abdomen very similar to the female abdomen, hair at apex whitish 

 with an ochreous tinge, anal process truncate with a pale stramineous 

 margin. 



Andrena (Parandrena) perchalybia new species. 



Type. — Xo. 4,023. The Academy of Natural Sciences of Phila- 

 delphia. 



Type Locality. — Washington State (H. K. Morrison). 



Related to A. (P.) cyanosoma Cockerell var. 



Female. — Length 9.5 mm.; body dark greenish, almost completely 

 covered with dark brown or blackish hair; head covered with long 

 hair that is mostly brownish but largely blackish on the face, front 

 longitudinally striate down the middle, punctured and indefinitely 

 reticulate on the sides, fovea seal-brown, at most less than one-half 

 as wide as the ocellocular line is long, but more than one-third as 

 wide as the latter line is long, fovea attenuated below and reaching 

 to or a little below the antennal line, facial line : transfacial line : : 



