AMERICAN PHILOSOPHICAL SOCIETY. 423 



every particular with the short description of that insect in the 

 Syst. Nat. and also in the Syst. Elcut., but this circumstance 

 alone is not sufficient to warrant us in concluding it to be the 

 same, for in this instance, as in very many others wherein brief 

 descriptions are concerned, several distinct species may be re- 

 ferred with equal propriety to the same trivial name. Olivier, 

 iu his celebrated work, gives us a few additional characters of 

 the tn'fasclatih, the most important of which " on voit une raic 

 interrompue, le long de la suture, jusque vers le milieu," is 

 with respect to our insect a [411] good discriminative charac- 

 ter, in which this line or vitta never has existence ; the size also 

 as depicted by him, tab. 2, fig. 18, is not quite half an inch, 

 whereas that of the viihjaris is full three-fifths. From these 

 characters it must be evident that Olivier's trifasciata is a dif- 

 ferent insect from the one here described, and as he examined 

 the various cabinets in which the insects described by Fabricius 

 are preserved, I rely upon his knowledge of the Fabrician spe- 

 cies, particularly as he gives the synonym of that author. 

 Against the correctness of this decision it might be urged, that 

 Fabricius, in his subsequent work, Syst. Eleut., does not refer 

 to the above mentioned figure, neither does he quote Olivier at 

 all under his description of tn'/usn'ata ; but this objection, how- 

 ever plausible, will have no weight, when we know that he refers 

 to this very figure, the ISth, of tab. 2, for the (I punctul((ta, an 

 insect with which it has no other than a generic affinity, and for 

 which, on comparison, it could not be mistaken. 

 [Afterwards described as C. ohliqnata Dej. — Lec] 



2. C IIIRTICOLLIS. — Obscure cupreous, beneath bluish-green, 

 trunk each side cupreous brilliant, hairy ; elytra with two lunules, 

 intermediate refracted band and outer margin white. 



6'. hirtico/llii, Journal of the Academy of Natural Sciences, 

 vol. 1, No. 2, p. 20. 



IjCiigth rather more than half an inch. 



Inhabits l*(;nnsylvania. 



Dcsr. II(!ad cupreous, varied with groon or blue, front with 

 cinereous hair; terminal j(Mnts of the antenn;x) black, o|)aqiie ; 

 labruni white, sinuate on the anterior edge, and furnished with a 

 1818.] 



