1916.] NATURAL SCIENCES OF PHILADELPHIA. 593 



in part, more widely separated, second tergite depressed distinctly 

 less than one-half but more than one-third, abdomen covered with 

 fine almost whitish hair that is erect on the basal tergite and appressed 

 elsewhere, depressed portions of second, third and fourth tergites 

 more or less brownish stramineous, ventral aspect of third tergite 

 somewhat brownish, fimbria fuscous brown, pygidium convex, black, 

 without an impressed line or other definite sculpture. 

 Andrena (Parandrena) subchalybea new species. 



Type. — No. 4,024. The Academy of Natural Sciences of Phila- 

 delphia. 



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



Has characters in common with A. (P.) manifesto, (Fox). 



Female. — Length 8.5 mm.; body greenish, covered with whitish 

 and black pubescence; head with its facial line : transfacial line :: 

 56 : 64, axial line : temporal line :: 28 : 9, covered with blackish 

 brown pubescence except on the vertex where it is whitish tinged 

 with brown, front longitudinally striate and reticulate, foveal hairs 

 seal-brown, fovea at most less than half but more than one-third as 

 wide as the ocellocular line is long, separated from the eye margin 

 near its upper end by a sloping, nearly bare space that is nearly 

 one-sixth as wide as the ocellocular line is long, fovea attenuated 

 below and almost reaching the antennal line, joint 3 of antennae 

 distinctly longer than 4 + 5, but distinctly shorter than 4 + 5 + 6, 

 joints 4-10 inclusive wider or apparently wider than long, terminal 

 joint longer than wide and typical, antennae blackish except the 

 flagel which beyond the third joint is brownish beneath, face 

 with shallow nearly adjoining punctures, clypeus indistinctly punc- 

 tured, appearing rippled, anterior half of clypeus dark and bronzy 

 almost hidden by the pubescence, clypearea wanting, clypeus convex, 

 labrarea at most not more than half as long as wide at base, tri- 

 angularly emarginate, labrarea apparently somewhat less than 

 one-third as wide as the labrum which latter has a fringe of shining- 

 brownish stramineous hairs, base of mandibles and eye nearly 

 adjoining, the malar space accordingly represented by not much more 

 than a shining line, mandibles robust, blackish, mostly castaneous 

 beyond the basal half, typical in shape, palpi slender nearly typical; 

 thorax covered with whitish pubescence, tinged with brown on the 

 pleura, thoracic pubescence mixed with black or blackish hairs that 

 are easily overlooked on the dorsulum, all hairs black on anterior 

 and posterior margin of mesopleurae, dorsulum finely reticulated, 

 also with shallow punctures that are as many as five puncture widths 



