AMERICAN PHILOSOPHICAL SOCIETY. 4'85 



3. C. LITHOPHILUS.— Green, beneath black ; head punctured; 

 feet testaceous ; antennse fuscous, paler at base. 



Length less than seven-twentieths of an inch. 



Body green, with very short, numerous hairs, beneath black j 

 head punctured ; front smooth ; antennae fuscous, base and palpi 

 testaceous, the latter dusky at tip ; labrum and mandibles piceous- 

 black ; thorax wider somewhat behind the middle, transverse- 

 quadrate, lateral edge regularly and equably curved, posterior 

 angles slightly rounded, surface densely punctured, punctures 

 large, dorsal line acute, posterior ones dilated ; elytra villous, 

 minutely punctured, strise puncturad, interstitial lines flat [63] 

 pectus and postpectus with dilated glabrous punctures ; feet rufo- 

 testaceous ; venter with villous punctures. 



Closely allied to sericeus and sestivus, but is much smaller. 



[Subsequently described as C. virldanus Dej. — Leg.] 



4. C. EMARGINATUS. — Grreeu-cupreous ; elytra purple-black; 

 antenna3 and feet rufous ; head punctured ; labrum deeply emar- 

 ginated. 



Length eleven-twentieths of an inch. 



Body green, tinged with cupreous, with very short numerous 

 hairs ; head polished, punctured ; antennae and palpi rufous ; la- 

 brum profoundly and obtusely emarginate, ferruginous; thorax 

 transverse-quadrate, dilated in the middle, polished, densely 

 punctured, lateral edge curved regularly to the hind angles, dor- 

 sal and basal lines very distinct, base nearly equal to the base of 

 the elytra; elytra dark purple, opake, with numerous very min- 

 ute punctures, striae punctured, interstitial lines depressed ; pec- 

 tus and postpectus punctured ; feet rufous ; abdomen minutely 

 punctured . 



Very like C. sestivus, but is readily distinguished by the cur- 

 vature of the thoracic edge being regularly continued to the pos- 

 terior angles, and by the more deeply emarginated labrum. Not 

 uncommon. 



[Belongs to Anomoglossus Chaud., a genus which differs from 

 Chlxnius by the absence of the mentum tooth. — Leg.] 



5. C. PUSILLUS. — Green, polished ; elytra purple ; antennae 

 and feet rufous ; head punctured ; labrum deeply emarginate. 

 1823.J 



