AMERICAN PHILOSOPHICAL SOCIETY. 431 



9. C. PUNCTULATA. — Obscure cupreous, beneath varied with 

 blue and purple, each elytron with a few white points and ter- 

 minal lunule, an undulated line of distant green punctures near 

 the suture. 



C. punctulata, bronzee en-dessus, bleu en-dessous; elytres 

 avec quelques points blancs, et une suite de pointes enfonces 

 brillans. Oliv. Ins. No. 33, tab. 3, fig. 37, a. b. [421] 



C. punctulata capite, thoraceque cupreis, elytris punctatis ob- 

 scuris : punctis lunulaque apicis albis. Fabr. Syst. Eleut. 1, p. 

 241. 



C. ohscura Melsh. Catal. 



Length about half an inch. 



Inhabits North America. 



Desc. Head cupreous obscure, margin, cheeks and two lines 

 between the eyes blue ; antennae brown, base cupreous ; front 

 naked ; labrum white, sinuated on the edge, with a single promi- 

 nent tooth and six submarginal punctures; palpi, labials white, 

 last joint green, external maxillary ones piceous, third and fourth 

 joints green. Trunk, deep blue, varied with purple beneath, sides 

 cupreous; thorax color of the head, impressed lines and lateral mar- 

 gin blue ; elytra color of the thorax, irregularly punctured with 

 green, on each an undulated line of distant larger green punc- 

 tures near the suture, and a few at the middle of the base ; five 

 small white dots, of which three are on the disk arranged in an 

 oblique line, one near the humerus, the second central, third 

 near the suture, the fourth and fifth dots marginal situate oppo- 

 site the two preceding ones, terminal lunule straight, not ascend- 

 ing the suture. Abdomen, venter varied with purple and blue ; 

 tail bronzed. 



Var. a. Elytra destitute of the white dots, the lunule only re- 

 maining. 



A very common insect, its variations are confined to changes 

 in the number and magnitude of the spots of the elytra ; the 

 anterior marginal dot is always minute, and of all the others 

 most frequently wanting, the two anterior spots of the disk also 

 are often invisible. Fabricius by mistake refers to fig. 18, tab. 

 [422] 2, of Olivier's Insects, for this species, which is intended 

 for the C. trifasciata, a native of South America, rather smaller 

 than this insect and totally distinct in its characters. 

 1818.] 



