DESCRIPTIONS OP NEW SPECIES. 



lateribus late rotundatis subserratis, elytris obsolete 3- Tel 4-costatis. 

 Long. -08. 



Pennsylvania ; Dr. Melsheimer. Resembles in form a Corti- 

 caria, but in sculpture is quite different. The elytra are feebly 

 sulcate, leaving three or four traces of costs on each. 



MARGI1VUS LEC. 



213. M. rudis. Elongato-ovalis parum convexus, nigro-fuscus, pube 

 erecta fusca vestitus, capite thoraceque rude punctatis, hoc latitudine 

 breviore, antrorsum angustato, lateribus rotundatis marginatis, angulis 

 posticis rectis, elytris striis fortiter punctatis, parum impressis. Long. 

 10. 



Middle and Southern States ; not rare. The genus differs 

 from Diphyllus by the antennal club being three-jointed, and by 

 the lateral lines of the thorax being obsolete, a mere trace of the 

 outer one being seen near the base, and from Diploccelus by the 

 last mentioned character, as well as by the llth joint of the 

 antennas being somewhat narrower than the 10th. 



DIPLOCOELVS GuEiif. 



274. D. Ibriiniieus. Elongatus ovalis, parum convexus, nigro-fuscns, 

 pube suberecta minus subtiliter vestitus, capite baud dense, thorace 

 fortius punctate, latitudine fere duplo breviore, lateribus marginatis 

 antice rotundatis, utrinque bisulcato et subtiliter tricarinato, elytris 

 striis punctatis vix impressis, interstitiis subtiliter punctulatis, antennia 

 pedibusque obscure ferrugineis. Long. '14. 



Middle States ; rare. Dr. Melsheimer and Mr. Hike. 



DEARTHRUS LEC. 



275. I>. Ion guilts. Elongatus, niger subnitidus, subtiliter cinereo- 

 pubescens, sat fortiter baud dense punctatus, thorace latitudine plus 

 duplo breviore antrorsum angustato, lateribus obliquis parum rotundatis, 

 medio breviter subtiliter canaliculate, elytris thorace quadruple longio- 

 ribua, antennis pedibusque piceis, illis basi tarsisque pallidioribus. 

 Long. '12. 



Georgia, Pennsylvania and Illinois ; on plants. More elon- 

 gate than any species of Attagenus, to which this genus is closely 

 allied. Like as in Attagenus, the prosternuin is truncate in front, 

 but is very slightly prolonged behind the coxae into a small 

 point ; the mesosteruum is tolerably broad, declivous, with a fine 



