AMERICAN ENTOMOLOGY. G9 



recurrent nervures : feet rufous : tergum dusky rufous, with four 

 transversely oval bright yellow spots on each side, of which the 

 anterior one is very small, and the posterior one is nearly extended 

 into a band. 



Obs. Inhabits various parts of the Union, and is not uncom- 

 mon in Pennsylvania. The wing cells are remarkable ; the in- 

 termediate cubital cellule having two recurrent nervures. 



The lower figure. 



Scolia TRICINCTA. — Specific character. Black ; collar with 

 two yellow spots ; scutel with one yellow spot ; tergum trifasciate 

 with yellow. 



Scolia tricincta nobis, Western Quarterly Reporter, vol. ii. 

 p. 74. 



Dcsc. Body black : front with obscure yellowish hair: mandi- 

 bles rufous at base : collar with a yellow spot on each side, some- 

 times united : squammula rufous : scutel with a small yellow 

 spot : feet rufous : superior wings dusky on the costal tip, ner- 

 vures ferruginous : cubital cells two, the second receiving one 

 recurrent nervure : tergum with three yellow bands, of which 

 the first and second are nearly, or, quite interrupted in the middle 

 each into two oval spots ; first segment with an obscure piceous 

 band. 



Obs. The terminal nervure of the radial cellule is so perfectly 

 transverse, that the cellule has not the usual appearance of being 

 separated at tip from the costal edge of the wing. The species 

 is, notwithstanding this anomaly, a true Scolia. 



The middle figure. 



PIERIS. Plate XXX. 



Generic character. Feet nearly equal ; nails of the tarsi very 

 apparent, bifid or unidentate ; inferior wings dilated beneath the 

 abdomen, so as to form a groove. 



Obs. This is one of the many genera into which the vast and 

 sumptuous genus Papilio, of Linne, has been separated. We are 

 indebted for it to Schrank. It nearly corresponds to the group 

 of Danai candid 'i, and includes the genera Colias, and Pontia of 

 Fabricius, and Gonepteryx of Leach. 



These butterflies are natives of various regions of the globe : 

 some of them are very frequent in almost every field, and must 



