DESCRIPTIONS OF NEW SPECIES. 7 



postice valde angustato, lateribus late marginatis antice valde rotunda- 

 tis postice sinuatis, aiignlis posticis rectis prominulis, elytris versus 

 basin pallidioribus, striis punctatis, interstitiis sat dense puuctatis, an- 

 tennis pedibusque obscure ferrugineis. Long. -38. 



Methy Lake, and Labrador ; Mr. Kennicott, and Prof. Chad- 

 bourne. A very distinct species; the lateral margin of the tho- 

 rax is not so wide as in C. rcflexa, but about the same as in C. 

 cribricollis. 



20. C. toorealis. Nigro-picea, parce pubescens, capite tboraceque pro- 

 funde hand grosse punctatis, hoc latitudine vix breviore, postice fortiter 

 angustato, lateribus modice rnarginatis undulatis postice subsinuatis. 

 angulis posticis obtusis subrotundatis, elytris cyaneo-tinctis, buraeris 

 rufescentibus, striis fortiter punctatis, interstitiis parce subtiliter sub- 

 seriatim punctatis, anteiinis pedibusque ferrugineis. Long. "31--35. 



North Red River, Mr. Kennicott: Nova Scotia, Mr. Ulke. Of 

 the same shape as C. pilosa, with the sides of the thorax irregu- 

 larly rounded in the same manner, but with the hind angles more 

 obtuse, and slightly rounded at tip ; .the pubescence of the eljtra 

 is shorter, and the punctures of the intervals are smaller and almost 

 arranged in single lines. 



RHOMBORERA Reiche. 



21. R. bicolor. Capite tboraceque rufo-testaceis, hoc latitudine plus 

 sesqui breviore, postice valde angustato, et profunde impresso lateribus 

 subangulatis inarginatis, linea dorsali tenui, elytris nigris fere obsolete 

 striatis, margine tenui laterali rufo-testaceo, abdoniine antennisque pi- 

 ceis, pedibus rufo-testaceis. Long -20. 



Western States: Dr. Schaum. Resembles R. pallipes Lee, 

 except in color. 



PLATYIVUS Box. (emend. Brull£.) 



22. P. caildatus. Nigro-piceus, thorace latitudine longiore, ovato, 

 lateribus valde marginatis, basi late rotundato, angulis posticis obtusis, 

 linea dorsali profunda, impressionibus basal ibus elongatis angustis, 

 elytris ovalibus planiusculis fortiter marginatis obsolete striatis, in- 

 terstitiis lino, 3io, 5to et 7mo punctis pan-is uniseriatim positis, apice 

 oblique sinuatis et singulatim acuininatis ; pedibus, palpis, antennis- 

 que ferrugineis, his articulo 3io sequentibus duobus vix breviore. Loug. 

 •50. 



Western States, one male ; Mr. John Akhurst. Resembles/'. 

 larvalis Lee, but the thorax is less broadly margined, the elytra 



