LECONTE— SYNOPSIS OF PTEROSTICHUS. 231 



13. E. acutus, thorace margine integro, angulis posticis prominulis, linea transversa anteriore ob.solcta, 

 eljtris 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 tha-n 

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

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



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

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



Feronia oh&oleta Say. Trans. Am. Phil. Soc. 4,424. 

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



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

 nor an impressed line ; the basal foveae 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 ohsoleta of that volume is, however, very different, being a 

 Platynus, and the same as Agonum luctuosum Dej. 



15. E. a ppr xim a tus , thorace margine integro, angulis posticis obtusis.simis, linea transversa ante- 

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

 Long. -4. 



Broscus approxhnatushe,c. An. Lye. 4, 354. 



Pennsylvania, Melsheimer. Very similar to the preceding ; the striae of the elytra 

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



16. E. 1 33 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 r io, 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 [Slcropus) morio Dej. Sp. Gen. 3, 302. 



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



Georfy'ia, not common. The external marginal stria is wanting, or is so closely 

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

 visible are punctured. 



