52 DESCRIPTIONS OF NEW SPECIES. 



been found in Arizona and Nebraska, and I am inclined to refer 

 them to the same species, and to regard it as the Oxylelus arma- 

 tut> described by Say from immature specimens. 



183. B. fumatus. Nigro-piceus, subnitidus, capite punctis paucia 

 parvis notato, subtiliter granulato, supra antennas breviter elevato, + .ho- 

 race canaliculato, fortiter parce punctato, elytris sat dense punctatis, 

 lateribus late rufescentibus, abdomine rufo-piceo, ano pallidiore, anten- 

 narum basi coxis pedibusque obscure runs. Long. *25. 



Western States. The absence of the tubercle at the middle 

 of the head distinguishes this from B. armatus. 



184. B. semiferrugineiis. Capite thoraceque nigro-piceis, rude 

 punctatis, boc canaliculato, illo supra antennas breviter alte elevato, 

 fovea parva occipitali notato, elytris sat dense punctatis, ferrugineis. 

 basi suturaque nigricantibus, abdomine antennaruuique basi rufo-piceis, 

 pedibus testaceis. Long. *20. 



Middle States. The thorax is more convex and rounded than 

 in the two preceding species, and much more coarsely punctured. 



185. B. flavipennis. Capite nigro-piceo, granulato baud punctato, 

 supra antennas elevato, fovea uiinuta occipitali notato, thorace rufo-piceo 

 lateribus antice baud rotundatis, subtiliter canaliculato, granulato parce 

 baud profunde punctato, elytris flavis sutura nigricante, nitidis parce 

 punctatis, abdomine nigro-piceo, segmentis duobus tdtimis pallidis, an- 

 tennis basi ferrugineis, pedibus testaceis. Long. -17. 



San Diego, California ; in salt marsh. 



186. B. analis. Rufus, ano sutura capite tboraceque nigris ; capite 

 utrinque subelevato, et parce subtiliter punctato, thorace polito profunde 

 punctato, subtiliter canaliculato, lateribus late rotundatis, elytris sat 

 dense punctatis ; metasterno nigro. Long. - 16. 



Illinois. The last two abdominal segments are black. 



1ST. B. nitidicollis. Nigro-piceus, capite utrinque subelevato, et 

 parce punctulato, thorace latitudine fere breviore lateribus late rotunda- 

 tis, nitido profunde punctato, vitta dorsali Isevi, elytris obscure ferrugi- 

 neis, basi et sutura infusoatis, modice punctatis, antennis pedibusque 

 ferrugineis. Long. -14. 



One specimen ; New York. 



188. B. diagonalis. Niger brevissime pubescens, capite lateribus 

 breviter elevato, thorace latitudine subbreviore, lateribus rotundatis, 



