212 ACADEMY OF NATURAL SCIENCES 



base ; near the tip smaller, and approaching regular series ; be- 

 neath blackish : feet pale rufous. 



Length more than one-tenth of an inch. 



A much smaller and much more convex species than the pre- 

 ceding one. In the form of the terminal joint of the maxillary 

 palpi, this species closely approaches the genus Eumolpus. 



3. C. CONVEXA. — Blackish; labrum and base of the antennae 

 rufous ; an indented line on the vertex. 



Inhabits Missouri. 



Body convex, blackish, tinged with greenish or dull cupreous, 

 punctured : head minutely punctured ; an indented, abbreviated 

 line near the vertex, which does not extend below a line drawn 

 between the middle of the eyes ; space between the antennae 

 plain : antennse black; six basal joints pale rufous : labrum pice- 

 ous : palpi pale at base; tip black : thorax densely and minutely 

 punctured : elytra with large and more distant punctures, some 

 of which become almost regular series near the tip : beneath 

 black, somewhat tinged with brassy : feet piceous-black : thighs 

 subclavate. [444] 



Length less one-fifth of an inch. 



4. C. STiATA. — Black; labrum, palpi, and base of the antennae, 

 dull rufous ; elytra striate, with punctures. 



Inhabits Missouri, 



Body black, punctured, immaculate : head with obsolete, small 

 punctures ; an obsolete, indented abbreviated line near the vertex, 

 hardly attaining a line drawn between the middle of the eyes : 

 antennae, five or six basal joints dusky rufous : labrum piceous : 

 palpi pale at base : thorax, punctures minute, not deeply im- 

 pressed : elytra with regular series of large, profound punctures : 

 thighs dilated in the middle. 



Length three-twentieths of an inch, 



[A species belonging to Paria Lee, Proc. Acad. Nat. Sc. 

 Phil. 1858, 86 ; it is C. aterrima Oliv. — Leg,] 



5. C PUNCTicOLLis. — Greenish or cupreous ; thoracic punc- 

 tures oval; labrum and antennae at base rufous. 



Inhabits Missouri. 



Head and thorax with crowded, longitudinally oval, profound 

 punctures : antennae black-brown ; six basal joints pale ; labrum 



[Vol. III. 



