486 TRANSACTIONS OF THE 



Length less than seven-twentieths of an inch. 



Body with very short numerous hairs ; head green, polished, 

 punctured ; antennae and palpi rufous, brownish towards the 

 tips ; labrum piceous, deeply emarginate ; thorax with large 

 punctures, a little contracted behind, posterior lateral edge 

 somewhat excurved, doi-sal line not deeply depressed, basal ones 

 indented; elytra purple, interstitial lines convex, with distinct 

 punctures [64] striae with the punctures not larger than those 

 of the interstitial lines; feet pale rufous. 



Not a common species. Known by its small size. 



[Also belongs to Anomoglossus ; it was afterwards described by 

 Dejean as C. clcgantulus. — Lec] 



6. C. LATicoLLis. — Dark violaceous ; elytra black; antennae 

 and feet rufous ; head punctured ; thorax at base as broad as the 

 elytra. 



Length rather more than three-fifths of an inch. 



Body hairy, deep violaceous glossed with green, beneath black ; 

 head punctured ; antennae reddish-brown, base and palpi rufous; 

 labrum truncate, ferruginous; thorax densely punctured, trans- 

 verse-quadrate, narrowed before, base not contracted, as broad as 

 the elytra ; elytra with numerous minute punctures, striae with 

 with small punctures, interstitial spaces perfectly flat ; feet ru- 

 fous ; abdomen with small punctures. 



Approximates closely to sesfiviis and sericeus, biit diflfers in the 

 form of the thorax, which is proportionally larger. 



Brought from the Missouri by Mr. Nuttall. 



7. C. IMPUNCTIFRONS. — Dark green ; elytra black ; antennae 

 and feet rufous ; head impunctured ; thorax at base as broad as 

 the elytra. 



Length three-fifths of an inch. 



Body dark green, beneath black ; elytra black ; head green, 

 polished, impunctured; labrum emarginate, ferruginous ; thorax 

 obscure green, transverse-quadrate, punctured, punctures minute, 

 base as broad as the elytra ; elytra black, punctures numerous, 

 minute, striae with distinct punctures ; feet rufous. 



Distinguished from all the preceding ones by the glabrous 

 front, and small size of the thoracic punctures. Bare. [65] 



[Vol. II. 



