LECONTE— SYNOPSIS OF PTEROSTICHUS. 231 



13. E. acutus, thorace margine integro, angulis posticis prom inulis, linea transversa anteriore obsoleta, 

 elytris striis profundis, punctulatis, pedibus rufo-piceis. Long. *4. 



Louisiana, Dr. Schaum. Black, very shining - , head large, obtuse, antennae black 

 at base, rufo-piceous beyond the middle, scarcely as long as the head and thorax ; 

 thorax subtransverse, not at all narrowed at the apex, which is scarcely emarginate, 

 very much narrowed behind, and rounded on the sides, sinuate at the posterior 

 angles, which are very small acute and prominent ; lateral margin not interrupted ; 

 anterior transverse impression distinct, anterior line none ; dorsal line deep, a 

 little abbreviated at each end ; basal impressions very short. Elytra not wider than 

 the thorax, interior strise strongly marked, punctured, sixth and seventh strise obso- 

 lete ; exterior marginal stria distinct. Feet rufo-piceous. 



14. E. obsoletus, thorace margine integro, angulis posticis obtusissimis, linea transversa anteriore nulla, 



elytris striis profundis, punctatis, pedibus rufo-piceis. Long. -41. 

 Feronia obsoleta Say. Trans. Am. Phil. Soc. 4,424. 

 Broscus obsoletus Lee. An. Lye. 4, 354. 



Alabama, Haldeman. The thorax has anteriorly neither a transverse impression 

 nor an impressed line ; the basal fovea? are deep and small ; the elytra are a little 

 wider than the thorax, the outer marginal stria is distinct. In the Annals of the 

 Lyceum, by a misprint, the second volume of the Trans. Am. Phil. Soc. is quoted for 

 this species. The Feronia obsoleta of that volume is, however, very different, being a 

 Platynus, and the same as Agonum luctuosum Dej. 



15. E. approximatus, thorace margine integro, angulis posticis obtusissimis, linea transversa ante- 

 riore integra, margini approximata, elytris striis internis sat profundis, punctatis, pedibus rufo-piceis. 

 Long. -4. 



Broscus approximatus Lee. An. Lye. 4, 354. 



* Pennsylvania, Melsheimer. Very similar to the preceding ; the stria? of the elytra 

 are less deep ; the outer marginal stria is less distinct. 



16. E. 1 £e v i p e n n i s , thorace margine integro, angulis posticis obtusis, linea transversa anteriore medio 

 interrupta, elytris obsolete striatis, pedibus rufo-piceis. Long. -35. 



Broscus Isevipennis Lee. An. Lye. 4, 354. 



Georgia, Louis LeConte. In the position of the outer marginal stria it agrees with 

 the preceding species. 



17. E. m o r i o , thorace margine pone medium obsoleto, angulis posticis obtusissimis, linea anteriore trans- 

 versa a margine remota, elytris nunc obsolete striatis, pedibus rufo-piceis. Long. -4. 



Feronia [Ster opus) morio Dej. Sp. Gen. 3, 302. 



Broscus morio Lee. An. Lye. 4, 355. 



Georgia, not common. The external marginal stria is -wanting, or is so closely 

 approximated to the margin itself as to be invisible; the strise of the elytra when 

 visible are punctured. 



