THE CANADIAN ENTOMOLOGIST 343 



Thorax short and broad, square, flat, densely gray pollinose 

 on black ground, with distinct, close punctures which are not 

 arranged in rows and bear only minute hairs, giving the meso- 

 notum a bare appearance; the lateral setae very short but stout; 

 scutellum a little elongated, flat, punctured and concolorous with 

 dorsum, with only one pair of apical setae of noticeable size; pleurae 

 black, gray-poUinose except in the depressions above the front and 

 hind coxae; postnotum shining black; halteres yellow. 



Abdomen subshining black above, indistinctly paler basally, 

 opaque black below . 



Legs including coxae opaque black, the knees vaguely, the 

 tibiae except a broad, median ring on middle and hind ones, and 

 all the tarsi yellow. 



Wings subhyaline, veins blackish, the costal segment before 

 the tip of second vein less than double the one beyond it. 



Length 1.3 to 1.5 mm. 



Thirteen specimens, both sexes: ten from Treesbank, Manitoba, 

 May 6, 1916, including the type, a female; two Aweme, Manitoba, 

 Sept. 12 and Oct. 13, 1916; one Estevan, Saskatchewan, May 20, 

 1916. All collected by Norman Criddle. 



NEW HALICTINE BEES FROM CHILE. 



BY T. D. A. COCKERELL, BOULDER, COLORADO. 



The Chilean bee-fauna is one of the most remarkable in the 

 world, many of the species having a facies quite distinct from those 

 of other parts of South America. Many species were long ago 

 described by Spinola; others have been made known at intervals 

 since, but there can be no doubt that very many remain to be 

 discovered. 



Agapostemon (Pseudagapostemon) xanthorhinus, sp. n. 



cf . — ^Length about 7.5 mm.; anterior wing 5.5; bluish-green; 

 clypeus (except two dots and narrow lateral margins), labrum and 

 mandibles (except black basal spot and ferruginous apex) yellow; 

 a yellow stripe across tubercles; legs bright yellow, with the coxae, 

 trochanters, anterior femora basally, middle and hind femora 



October, 1918 



