252 LECONTE— SYNOPSIS OF PTEROSTICHUS. 



5. L. c e 1 e r , thorace latitudine non breviore, antrorsum vix angustato, lateribus rotundatis, angulis posticis 



obtusis, basi utrinque brevius striate, vix punctate, elytris striis profundis punctulatis, macula communi 



postica, antennarumque articulo primo lsete rufis. Long. *3. 

 Feronia (Argutor) ceteris Dej. Sp. Gen. 3, 246. 

 Argutor ceteris Lee. An. Lye. 4, 337. 



Georgia and Pennsylvania; very rare. My only specimen has the epipleuree 

 rufous, but this is probably the result of immaturity. 



6. L. agilis, tborace latitudine subbreviore, antrorsum subangustato, lateribus rotundatis, angulis pos- 



ticis rectis rotundatis, basi parce punctate, utrinque breviter striato, elytris striis profundis subtiliter 



punctulatis, antennarum basi tibiis tarsisque runs. Long. -3. 

 Feronia {Argutor) agilis Dej. Sp. Gen. 3, 244 

 Argutor agilis Lee. An. Lye. 4, 338. 



Southern States. In the Annals of the Lyceum I erroneously quoted Argutor 

 femoralis Kirby, as a synonym. That species, however, having three dorsal punc- 

 tures, cannot belong to this genus. 



7. L. pusillus, tborace latitudine breviore, antrorsum subangustato, lateribus late rotundatis, angulis 



posticis subrectis rotundatis, basi utrinque breviter striato, elytris striis antice subtiliter punctulatis, 



antennarum basi pedibusque runs. Long. -3. 

 Georgia; one specimen. This species has probably been confounded with L. 

 velox, from which it differs by the thorax being broader, narrowed in front, less 

 rounded on the sides and posterior angles. The striae of the elytra are distinctly 

 punctured as far as the middle ; the interstitial spaces are wider and more flat than 

 is usual in this genus. 



8. L. velox, tborace latitudine subbreviore, antrorsum non angustato, lateribus magis rotundatis, angulis 



posticis rectis rotundatis, basi utrinque breviter striato, elytris striis antice punctulatis, antennarum 



basi pedibusque runs. Long. -26. 

 Feronia (Argutor) velox Dej. Sp. Gen. 3, 245. 

 Argutor rectus^ Lee. An. Lye. 4, 338. 



Pennsylvania; rare. The striae of the elytra are deep, but the interstices are 

 moderately flat. 



8. L. tseniatus, thorace latitudine non breviore, antrorsum non angustato, lateribus late rotundatis, 



basi vix parce punctato, utrinque striato, angulis posticis rectis subrotundatis, elytris striis profundis 

 vix obsolete punctulatis, antennis pedibusque rufis, femoribus subtus nigro-maculatis. Long. -26. 

 Louisiana; Dr. Schaum. Resembles the next species in the form of the thorax, 

 but the general form is narrower. In the single specimen I have, the anterior trans- 

 verse line of the thorax is not visible. If this character be constant, it will enable 

 this species at once to be distinguished from all the others, except L. crenatus. 



9. L. piciventris, tborace latitudine non breviore, antrorsum non angustato, lateribus late rotundatis, 



angulis posticis rectis subrotundatis, basi utrinque striato, elytris striis antice punctalatis, antennis pedi- 

 busque rufis. Long. *22. 

 Argutor ficiventris Lee. An. Lye. 4, 337. 



