AMERICAN PHILOSOPHICAL SOCIETY. 425 



C. nnijjunctata, subpurpurascens, labio elytrorumque puncto 

 albis. Fab. Syst. Eleut. pars 1, p. 238. [413] 



C. umjmnctata, violette, brilliante en-dessous, obscure en-des- 

 biis ; elytres avec un point blanc. Oliv. Inst. 33^ tab. 3^ fig. 27. 



Length nearly seven-tenths of an inch. 



Inhabits the southern States. 



Dec. Head entirely rugose, neck above granulate ; clypeus 

 narrowed in the middle ; labrum much broader in the middle, 

 white, edge brown, strongly three-toothed before, of which the 

 intermediate one is larger, margin with four punctures, of which 

 two are at the lateral angles and the others at the base of the 

 lateral teeth; mandibles white at base, tip black; palpi green. 

 Trunk, reddish-purple on the sides; thorax with the lines not 

 deeply impressed or diiferently colored, a little narrowed be- 

 hind ; elytra with a slight shade of greenish-olive, convex, with- 

 out a sutural angle or spine behind, irregularly punctured with 

 green ; on the posterior half are some larger, scattered, impress- 

 ed green dots, a few at the base and in an undulated line near 

 the suture ; surface somewhat unequal, a conspicuous indenta- 

 tion towards the base of each near the suture and an oblique, 

 abbreviated, obscure one in the centre of the elytron near the 

 marginal spot, which is subtriangular, white and placed on the 

 middle of the margin ; a minute, obsolete, white dot is situate 

 at the posterior curve. Abdomen, venter reddish-purple each 

 side near the base ; tail black. 



Of this insect I have seen but a single specimen, for 

 which I am indebted to Mr. J. Grilliams, who caught it in the 

 state of Maryland. It is very possible that it may be a distinct 

 species from the C. unijiunctata as the figure of that insect by 

 Olivier above referred to is rather smaller and of a somewhat 

 different habit ; nevertheless as his description agrees very well 

 [414] with our insect, I shall consider it as the same until those 

 who have an opportunity of seeing the original may decide. 



4, C. SEXGUTTATA. — Grecnish-blue polished, each elytron 

 with three marginal white dots, the two first, nearly equal, the 

 last transverse and terminal. 



C. Q-ffiittafa, viridis, nitida, elytris punctis tribus marginali- 

 bus albis. Fab. Syst. Eleut. 1, p. 241. 

 1818.] 



