590 PROCEEDINGS OF THE ACADEMY OF [NoV, r 



other depressed margins black, fimbria whitish with an ochreous 

 tinge, pygidium black. 



Other Locality. — Nevada (H. K. Morrison). 



Andrena (Parandrena) olivacea new species. 



Type. — No. 4,022. The Academy of Natural Sciences of Phila- 

 delphia. 



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



Related to A. (P.) perchalybea Viereck. 



Female.- — Length 9.5 mm.; body greenish and almost completely 

 covered with whitish pubescence, compared with the original descrip- 

 tion of A. (P.) perchalybea Viereck this species differs as follows: 

 head covered with long hair that is whitish throughout, front longi- 

 tudinally striate except above the antennal scrobes where it is 

 indefinitely reticulate and sparsely punctured, fovea whitish, at most 

 hardly more if more than half as wide as the ocellocular line is long, 

 fovea hardly attenuated below and extending only a little below 

 the antennal line, facial line : transfacial line :: 57 : 72, axial line : 

 temporal line :: 31 : 20, joint 3 of antennae : joints 4 + 5 :: 9 : 7, 

 black apical third of clypeus separated from the greenish basal 

 portion by a coppery zone, brownish part of antennae pale yellowish 

 brown; thorax covered throughout with whitish hairs, dorsulum 

 with deep punctures, bounding veins of stigma, stigma and costa 

 yellowish stramineous, rest of veins pale brownish stramineous, 

 membrane almost colorless, with a yellowish brown tinge, hair of 

 the black legs more or less whitish with an ochreous tinge, inner side 

 of metatarsi with brownish hairs, plumose hairs of scopa darker than 

 the simple hairs, rather ochreous except at the base of the tibiae where 

 they are brownish, claws brownish stramineous throughout except 

 that the hind claws are castaneous at their tips; propodeum with its 

 enclosure finely sculptured on the posterior aspect, the upper aspect 

 longitudinally rugose on each side of a median longitudinal carina, 

 rest of upper aspect of propodeum coarsely reticulated, rest of 

 propodeum finely reticulated and with widely separated shallow 

 punctures; abdomen with its pygidium planate otherwise apparently 

 as in the original description with which this species is compared. 



Allotopotype. — The Academy of Natural Sciences of Philadelphia. 

 Length 6.5 mm.; body as in the female as described above; head 

 with its facial line : transfacial line :: 46 : 53, axial line : tem- 

 poral line :: 26 : 15, temples neither carinate nor angulate but 

 subtrapezoidal, front striatopunctate, clypeus convex, its punc- 

 tures adjoining or almost adjoining, clypeus blackish along the 



