154 THE CANADIAN ENTOMOLOGIST. 



[267.] liody very black, slightly downy, minutely punctured. Apex 

 of the nose white, whiteness lobed ; inner orbit of the eyes below the 

 antennae white ; vertex channelled below the eyelets ; antennae scarcely 

 longer than the head ; the projecting lobes of the collar terminate in a 

 white tubercle ; base-covers piceous ; wings hyaline with dark nervures ; 

 metathorax longitudinally wrinkled ; posterior tibiae annulated at the base 

 with white ; abdomen more glossy than the rest of the body, almost 

 naked, and scarcely punctured ; it is narrower and more elliptical than in 

 any other known species of the genus. 



[This species and another, P. affinis Smith, are found in Canada.] 



FAINIILY ANDRENID.'E. 



369. Halictus rubicundus Stephens. — Length of body 5 lines. 

 Four specimens taken, locality not stated. 



^. — Body black, downy. Head suborbicular, down grayish; space 

 between the eyes broad ; down on the thorax thicker, ferruginous ; base- 

 covers rufo-piceous ; wings subhyaline \ nervures and stigma testaceous ; 

 post-costal nervure black ; legs thickly set with yellow hairs which shine 

 like gold ; tarsi testaceous ; abdomen elliptical, downy with decumbent 

 hairs ; margin of the segments fringed with white hairs, the two first sub- 

 interruptedly ; the ventral segments are similarly fringed, but the hairs 

 are shorter. 



370. Halictus crasstcornis Kirby. — Length of body 3 lines. A 

 single specimen taken in Lat. 54°. 



[2 68.] % . — This little insect is so extremely like Halictus Icevis, that 

 at first I regarded it merely as a variety of that species, but upon a closer 

 inspection they appear to me distinct. Li H. crassicornis the antennae 

 are proportionally more robust, but the principal difference lies in the 

 sculpture of the thorax. In //. Icevis that part is visibly punctured with 

 scattered punctures, but in the insect I am describing, under a common 

 lens, the punctures are scarcely discernible, but under a higher power, 

 besides a slight channel drawn longitudinally, innumerable very minute 

 punctures appear. Li the former also the stigma of the upper wings is 

 piceous, while in the latter it is testaceous. In other respects they are 

 perfectly similar. 



371. Andrena niPUNCTA Kirby. — Length of body 5^ lines. A 



