OF PHILADELPHIA. 193 



This species very much resembles C. discoideum, but is much 

 smaller ; and besides other differences, the punctuations of the 

 head and thorax are very distinct both in point of form and posi- 

 tion, being crowded and rounded in disco ideum,3ind. comparatively 

 distant in the present species. 



[Of the same genus as the preceding. — Leg.] 



3. C. IGNICOLLE. — Black ; thorax bright rufous. 

 Inhabits Missouri. 



Body black, hairy, punctured : antennae shorter than the body; 

 the joints extending into a small angle on their anterior tips : 

 thorax rounded, convex, bright rufous, with upright, prominent 

 hair : scutel black : elytra punctured, hairy ; the hairs upright 

 at base, and prostrate near the tip of the elytra ; tip entire. 



Length rather more than nine-twentieths of an inch. 



[Also of the same genus. — Leg.] 



4. C. PALLIDUM. — Whitish ; thoracic lineations and elytral 

 fasciae brown. 



Inhabits Arkansa. 



Body whitish, slightly tinged with yellow : eyes black : vertex 

 brown : antennae, joints tipped with brown : thorax contracted 

 behind; anterior margin brown; an obsolete, abbreviated line in 

 the middle, and a latei'al one which is dilated before, or some- 

 what cruciate, brown; a very obtuse, hardly [413] elevated, 

 lateral tubercle : elytra four-banded, with brown ; anterior band 

 transverse, abbreviated ; second very oblique and linear, third 

 dilated and undulated, fourth linear and placed near the tip ; 

 thighs clavate. 



Length more than one-fifth of an inch. 



[Allied to Ohriuni : subsequently described as Pliyton limuni 

 Newman, and Diozodes pallida Hald. — Leg.] 



5. C. AMOENUM. — Rufous ; elytra violaceous, punctured. 

 Inhabits the United States. 



C. hicolor Melsh. Catal. 



Body rufous, with short hair, punctured : antennae black : 

 thorax subinequal, polished; punctures very numerous on each 

 side ; less numerous on the disk ; scutel rufous : elytra vio- 

 laceous, with confluent, excavated punctures, furnishing short, 

 black hairs ; tip rounded : tibia and tarsi black. 

 1824.] 13 



