THE CANADIAN ENTOMOLOGIST. 307 



pubescence dense, very short and matted on the disk with indument, the 

 margins translucent when cleaned ; beneath shining, rufopiceous, under- 

 margin of thorax and elytra very broad and smooth, and with the venter 

 very densely, scarcely visibly punctate. The mentum and its appendages 

 are different from those in the other species, but to be understood a figure 

 is necessary ; the strial arrangement is more distinct than in undulata or 

 the European grisea ; there is no appearance of maculation except from 

 abrasion. The indument, whether natural or acquired, could probably be 

 removed like that on grisea by washing with ammonia, and when cleaned 

 the surface would be rufous. Only two examples occurred in May under 

 maple (acer riibrum) bark. 



Corymb it es elongaticollis. — Black, sericeo-pubescent ; head coarsely 

 confidently punctured, front a little depressed, antennae, $ a little longer 

 than head and thorax, $ a little shorter, serrate from the second joint, 3rd 

 scarcely longer than 4th, nth constricted slightly near tip ; thorax one-half 

 longer than wide, not very convex, a little roundly narrowed from middle 

 to apex, slightly constricted before the hind angles which are divaricate 

 and carinate, obsoletely canaliculate at base or not, finely and closely 

 punctured especially on the sides, a little shining when the pubescence is 

 rubbed off ; elytra not wider than thorax than which they are twice longer, 

 uniformly narrowed from base, striae of moderate depth, intervals convex 

 and closely punctured with fine punctures causing a rugous appearance, 

 finely sericeo-pubescent ; femora and tibiae piceous ; tarsi rufescent 

 beneath, very slender, 1st joint just perceptibly longer than 2nd, 5th as 

 long as 3rd and 4th conjointly ; abdomen sericeous, finely densely punc- 

 tulate, prothorax and side pieces more coarsely. Length, .32-45 inch. 

 Described from six examples ; not uncommon in Western Pennsylvania, 

 and I took an example at Parry Sound, Ontario. It varies greatly in size. 

 In the series it should be placed near tarsalis or mendax. 



Hemiptychus castaneus. — Elongate-oval, widest at base of thorax and 

 elytra, rufocastaneous, pruinosely pubescent, excessively finely punctulate; 

 thorax at base sinuate each side of middle, obliquely truncate and sepa- 

 rated externally from the base of the elytra by an indentation for the 

 knees of the middle feet, external two striae finely impressed from the 

 middle continuously around the apex uniting with the short apical im- 

 pressions of the 1 st and 2nd striae, and in two examples traceable an- 

 teriorly to the humerus, from which in one of these is an evident third 



