THE CANADIAN ENTOMOLOGIST 391 



SOME CALIFORNIA BEES. 



by t. d. a. cockerell, boulder, colorado. 



The Bees Recorded Below Were Received From Pomona 



College, California. 



Perdita (Cockerellia) aureovittata, n. sp. 



9 . — Length 8 mm.; robust, with dull white'hair; head broad, 

 dark bluish green, eyes slightly diverging below; mandibles biden- 

 tate, reddish in middle, pale yellow on upper side basally; labial 

 palpi with first joint about 770 microns long, and last three to- 

 gether about 448; maxillary palpi slender, last joint orange, joints 

 measuring in microns, approximately, (1) 192, (2) 160, (3) 144, 

 (4) 96, (5) 96, (6) 104; clypeus piceous, sparsely punctured, with 

 a large, pale yellow spot on each side, but none in middle; .no 

 supraclypeal mark; lateral face-marks pale yellow, consisting of 

 rather small triangular patches at lower corners of face; flagellum 

 light ferruginous beneath; mesothorax very minutely punctured, 

 green in front and around margins, but black on disc; scutellum 

 black, with fine punctures; rest of thorax dark blue-green; pro- 

 thorax without yellow markings; legs dark brown, the anterior 

 femora with a small yellow spot at apex; middle femora sharply 

 keeled beneath; tegulae pale testaceous; wings hyaline, nervures 

 and stigma light ferruginous; b. n. falling far short of t. m. ; marginal 

 cell very oblique at end, so much so that it could be described as 

 pointed; abdomen with five very broad, entire, bright orange 

 bands, those on segments 2-4 notched anteriorly in middle, and 

 all more or less excavated behind sublateralK"*; hair at apex pallid, 

 with a brownish tint; venter dark brown. 



Hub. — Claremont. California (Baker). Pomona coll. 226. 

 Related to P. sparsa and P. aJbipetuiis, but readily known by the 

 face-markings, broad, orange abdominal bands, etc. 



Zacosmia maculata (Cresson). 



Claremont (Baker); Pomona coll. 163. This is the true Z. 

 maculata; a male which I collected at Juarez (Chihuahua), Mexico, 

 May 12, may be taken as typical of a new subspecies desertoriim. 



November. 1916. 



