INIIVniTING NORTH AMEttK A 7.i 



(lark blue, humeral edge not dilated nor reflected ; epi- 

 pleura punctured. 

 Pectus punctured at base ; poslpeclus and venter each side 

 at base punctured. 



4. C. *bilobus reddish-cupreous, beneath black, margins not 

 reflected, basal thoracic lines obsolete. 



Length two-fifths of an inch. 



Bodif beneatli black. 



Head black with a very slight violaceous tint ; antennas and 

 palpi pale piceous. 



Thorax reddish-cupreous tinted witli violaceous, brilliant, 

 broadest ratlier before tlic middle, much narrowed behind, 

 lateral margin not dilated nor reflected, i)asc depressed and 

 much punctured, basal lines obsolete, basal edge rectilinear, 

 not wider than the pedicel oT the postpectus, disk some- 

 what bilobated, being convex each side and gradually in- 

 dented in the middle by the dorsal line, anterior margin 

 depressed and rugose in the middle. 



Elytra reddish-cupreous, strlte numerous, punctured. 



Pectus beneath, postpectus, and abdomen each side punc- 

 tured. 



Genus C.vlosoma. JFeber. 



Anterior tibia entire ; elytra entire; exterior maxillary and 

 labial palpi witli the terminal joint hardly larger than the 

 preceding joint ; mandibles unarmed, robust ; labrum 

 transverse, bilobate ; labium profoundly emarginatc and 

 with a short acute tooth in the middle ; antenna', second 

 joint one third as long as the following one ; thorax trans- 

 versely suboval ; abdomen subquadrate. 



Species. 



1. C. 5crw/a/o;- violaceous ; thorax witli a golden margin; 



elytra green margined with reddish-cupreous. 

 Length from twenty-three-twentieths to fivc-lourths of an 



inch. 



VOL. II. K 



