602 PROCEEDINGS OF THE ACADEMY OF [Nov.,. 



angle with the first abscissa of the discoidal vein; propodeum with a 

 well-defined enclosure that is finely reticulate and traversed by rather 

 longitudinal crooked and delicate rugae, rest of propodeum more 

 coarsely rugose than the enclosure which latter ends in a sharp 

 edge at apex; abdomen polished, reddish with blackish stains down 

 the middle of the tergum, without a metallic tinge, depressed portion 

 of second tergite down the middle : elevated portion :: 17 : 7, 

 second, third and fourth tergites with a distinct lateral fascia as in 

 A. (7\) salicifloris Cockerell, abdomen sparsely inconspicuously 

 punctured, the punctures of the elevated portion more distinct 

 than those of the depressed portion, abdominal pubescence whitish 

 with an ochreous tinge, fimbria yellowish golden, fifth tergite dullish, 

 punctured, no definite sculpture between the punctures, planate with 

 a triangular dark reddish brown area that is indistinctly punctured 

 separated from a blackish margin by an impressed line on each side 

 of the pygidium. 



In a paratopotype the nervulus is received by the median cell 

 and the first recurrent vein is received by the second cubital cell 

 almost in the middle. 



Other Locality. — A paratype from Ogden, Utah, May 16, 1915 

 (A. Wetmore) [U. S. Biological Survey], has the abdomen reddish 

 throughout and may represent a pale race of this species. 



Andrena (Trachandrena) nortoni new species. 



Type. — No. 4,031. The Academy of Natural Sciences of Phila- 

 delphia. 



Type Locality. — California, No. 10 (E. Norton). 



Related to A. (T.) swenki Viereck and Cockerell. 



Female. — Length 9 mm.; body black, mostly covered with bright 

 ochreous hairs; head covered with bright ochreous hairs, with its 

 facial line : transfacial line :: 62 : 73, axial line : temporal line :: 

 30 : 17, malar line : joint 3 of antennas :: a little more than 1 : 8, 

 elevated portion of malar space nearly as long as depressed 

 portion, front polished and punctured, the punctures as many as 

 three puncture widths apart, not elevated along inner foveal edge, 

 fovea at most : ocellocular line :: 12 : 14, foveal band wanting, 

 fovea virtually contiguous to the upper end of the inner eye 

 margin, distance between fovea and ocelli : ocellocular line :: 

 1.5 : 14, fovea decidedly constricted near its middle where it is 

 apparently only one-fourth as wide as the greatest width of the 

 fovea, the latter continued below the constriction as a narrowing 

 furrow down to a point apparently on the clypeal line, fovea pale 



