332 



REVISION OF THE TEN BBRII i.MD.K OF AMERICA, 



Epipleurae nut attaining tin- tip of elytra. 



[ntercoxal process ofabdomeD broad, quadrangular, truncate, 

 [ntercoxal process oval or acute narrow. 

 Eyes feeblj emarginate (broad at middle). 

 Femora strongly clavate. 



Mentum prominent at middle. 

 Mentum emarginate in front. 

 Femora slender. 



Hind tarsi long. 

 I lind tarsi short. 

 Eyes deeply emarginate (narrow at middle). 



Mentum trilobed, middle lobe prominent and truncate. 

 Mentum flat, rounded in front. 

 Antenna' slender, longer than head and thorax, outer joints triangular, 

 last joint oval, more or less acute. 

 Epipleurae attaining tip of elytra. 

 Epipleurae not attaining the tip of elytra. 

 Anterior tarsi of male not dilated. 

 Anterior tarsi of male feebly dilated. 

 interior margin of front reflexed. 

 Anterior margin of front not reflexed. 



COELOCNEMIS. 



MERINUS. 

 PACHYURGUS, 



VIMS. 

 HAPLANDRUS. 



SCOTnll.EXl \S. 

 CIBDELIS. 



GLYPTOTUS. 



RHINANDR1 S. 



CEM rRONOPl s. 

 XYLOPINUS. 



POLYPLEURTJS, Esch. 

 Polypleurus, Escli., Zool. Atl. IV. p. 11. 



The species of this genus are hut three in number, and may he easily distinguished. 



I'. geminatus, Sol., Aim. S..,-. Entom. France VII, p. 190; pi. 8, fig. 11. 



Black and opaque. Elytra with double rows of large deep punctures, the interstices 

 between the double rows not elevated. The hind angles of the prothorax are rectangular 

 and tlie base feebly sinuate. 



Length .42-.50 inch. 



Occurs in the southeastern Atlantic States. 



1'. perforatus, Germar, Upis In. 8] Nov., p. 148. 



Black and opaque. The elytra are sculptured as in the preceding, the perforations 

 being rather deeper and the interpaces more distinctly COStiform. The thorax is mure 

 strongl) sinuate behind and the angles more acute. The sides of the thorax are also 

 more rounded. 



Length .42-.52 inch. 



Occurs in the Gulf States. 



