168 DESCRIPTIONS Of NEW SPECIES. 



PYTHO LATE. 



479. P. st rictus. Rufo-piceus nitidus, capite parce subtilius punc- 

 tate, thorace latitudine breviore, lateribus valde ampliato-dilatatis, 

 tumidis, propre basin sinuatis, angulis posticis rectis, parce punctato, 

 profuude canaliculate, utriuque valde excavate ; elytris thorace latiori- 

 bus postice vix ampliatis, subtiliter punctulatis, pone basin sulcatis. 

 Long. '65. 



One specimen from Canada. The head is more finely punctured 

 than in P. niger and americanus, and the thorax is much more 

 elevated and dilated upon the sides, with the hind angles quite 

 conspicuous ; the discoidal impressions are deeper, and the two 

 portions of each impression are more distinctly defined. The 

 elytra are as finely punctulate as in P. americanus. 



SAL.POTGIJS OTLL. 



4SO. S. tiMalis. Supra seneo-niger nitidus, capite punctato, fronte 

 brevi late bifoveato, vertice obsolete foveato, thorace latitudine sub- 

 longiore postice angustato, utrinque ad latera impresso, ante basin 

 transversim impresso ; elytris thorace latioribus, subtilius seriatim 

 punctatis, interstitiis alternis parce uniseriatim punctatis ; subtus nigro- 

 piceus, tibiis tarsisque piceo-testaceis, antennis piceo-testaceis, articulis 

 externis piceis. Long. -12. 



One specimen, from Kansas, given me by Dr. S. Lewis. The 

 thorax is narrower and more convex than in S. virescens, and 

 the punctures are more distant, agreeing in these characters with 

 S. alternatus : in the latter the thorax is scarcely impressed, and 

 in both species the legs are completely blackish. 



miI\OSI]?Il S LATH. 



481. R. nitens. Elongatus, nigro-seneus pernitidus, capite cum rostro 

 fortiter punctato, hoc fronte angustiore, piano, ultra antennas dilatato, 

 margine apicali oreque testaceis ; thorace latitudine vix longiore, postice 

 angustato, lateribus antice rotundatis, disco rude punctato, quadri- 

 foveato ; elytris tborace fere dupto latioribus, seriatim punctatis, inter- 

 stitiis alternis uniseriatim parce punctatis, pone basin profunde arcuatim 

 transverse impressis ; subtus piceus, vel piceo-testaceus ; capite subtus 

 grosse punctato. Long. -15. 



Maine and Canada ; rare. I have received one specimen from 

 Dr. A. S. Packard, and another from Mr. W. Saunders of Lon- 

 don, C. W. The under surface with the legs is pale piceous in 

 one, but nearly black in the other. 



