276 ACADEMY OP NATURAL SCIENCES 



Bcutel pale nifous : elytra blackish, -with dense minnte hairs, and 

 close set small punctures : postpectus dark plumbeous, sericeous, 

 with very short prostrate hairs : feet pale rufous ; tibiae dusky, 

 the anterior pair somewhat arcuated, so as to have the appear- 

 ance of being a little dilated [166] on the inner side towards 

 the tip : abdomen dark plumbeous on the disk, lateral margins 

 and tip pale rufous. 



Length nine-twentieths of an inch. 



A species of Podahrus subsequently described as P. rufiolus 

 Mels. — Leg.] 



2. C. ROTUNDicoLLis. — Pale rufous ; elytra plumbeous, seri- 

 ceous ; thorax rounded before. 



Head rounded, sericeous on the front, towards the tip a little 

 varied with black ; antennae hardly darker than the head, third 

 joint longer than the second, but not twice as long ; mandibles 

 black at tip and on the inner margin : thorax pale rufous, polish- 

 ed, with short hairs, somewhat inequal ) lateral margins nearly 

 obsolete behind, depressed before ; posterior margin abruptly de- 

 pressed ; anterior margin regularly rounded, lateral angles none : 

 BCutel pale rufous : elytra plumbeous and decidedly sericeous, 

 varying with the incidence of the light : beneath pale rufous, 

 sericeous : anterior tibiae simple. 



Length nearly three-fifths of an inch. 



The colors of this species, as well as their distribution, are so 

 very similar to those of the preceding, that it might be easily 

 mistaken for the same, but it diflfers in the anterior rotundity of 

 the thorax and the simplicity of the anterior tibiae. 



3. C. LIGATA. — Pale ochreous ; head with two lines and tho- 

 rax with a vitta, black. 



Body pale ochreous : head with two very obvious black lines, 

 proceeding from the base of the antcnuEe and converging a little 

 to the neck ; antennae black, second joint very small, half the 

 length of the third, [167] which is not more than two-thirds 

 the length of the fourth ; mouth prominent, with a black line 

 each side above ; palpi long, terminal joint but little dilated : 

 thorax quadrate, not transverse; lateral edges rectilinear; angles 

 rounded, posterior ones more acutely so ; abroad black vitta, 

 which, however, does not aflfect the anterior and posterior raised 



[Vol. Y. 



