NATURAL SCIENCES OF PHILADELPHIA. YS 



iiig, tolerably closely punctate, basal impression f:\int. L. .0. 

 Middle, Southern, and Western States. 



Mantura, Stepli. 



This genus is distinct by the sculpture of the thorax, which has 

 a deep fovea on either side the base, but no transverse depression. 

 Elytra punctate striate ; no scutellar stria ; form subcylindrical, 

 front not carinate. 



M. floridana, sp. n. 



Convex, ovate, reddish-brown, beneath black, legs and antennoe 

 red ; head and thorax coarsely punctate, the latter transverse, 

 sides deflexed, hard]}- rounded, hind angles obtuse; base ver}- 

 deeply foveolate ; elytra deeply punctate striate, interstices im- 

 punctate, shining, stride 10, four and five united before the apex. 

 L. .08. Florida, Louisiana, Pennsylvania. The elytra have the 

 apical ^ distinctly paler, as in the European M. ruatica. 



Cerataltica, g. n. 



Antennas stout, second joint shorter than third, 5-11 stout sub- 

 quadrate, longer than broad, eleventh suddenly constricted at the 

 apex and acuminate ; thorax not margined at the base, impunc- 

 tate, posterior tarsi short, eWtra striate. 



1. C. insolita (Mels.), Pr. Acad., iii. 168. 



Subquadrate, entirely brownish-red, antennre fuscous in the 

 middle, the acuminate tip of the eleventh joint black ; ej'es promi- 

 nent, frontal keel not elevated ; thorax convex, front angles de- 

 flexed, sides rounded, hind angles prominent, much narrower 

 than the elytra, which are very finely striate punctate, interstices 

 extremely finely punctulate. L. .065. Southern States. 



Ch^tocnema, Steph. 



Easily recognized b}" the blue or reneous surface and pale tibire; 

 the posterior tibiae are dentate externally, being deeply sulcate for 

 the tarsi. 



A. Striae irregular near the suture^ eyes large, antennce rather 



distant. 

 1. C. irregularis, Lee. 



Brassy or bluish, oval, convex, opaque, minutely alutaceous ; 

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