EASTERN UNITED STATES. 257 



by an orange patch which extends inward to the first line. 

 Outer margin of wing white, with a large pale blue patch 

 before second tail, separated from the anal angle by a 

 black spot, a white spot in the subcostal area of the 

 hind wings towards the base. Tails black, white-tipped. 

 Lower part of knob of antennse and costa fulvous. The 

 female has the black border on the upper side broader 

 than the male. 



The larva is slightly pubescent, pale green, a little 

 yellowish, with a dorsal stripe and seven oblique streaks 

 of dark green. Head black, a marginal ray of yellow, 

 slightly shaded with obscure green on its upper side. 

 Food-plant, oak. 



The chrysalis is brownish gray, with the anterior part 

 and the wing-cases pale greenish gray. 



Gulf States, Virginia, Pennsylvania, Ohio. 



97. Thecla Favonius, Sm. — Abb. 



Expanse of wings from 1 to 1.3 inches. 



Upper surface brownish black, the male a little the 

 brighter. Males with a blackish sex-mark in the cell 

 of the fore wings, and a fulvous patch beyond the middle 

 of the hind wings, and a smaller spot at the anal angle. 

 The females have a similar patch, more or less distinct, 

 on the fore wings ; and both sexes have the anal portion 

 of the outer margin with a white line just within the 

 edge, continuous as a dull streak to the apex. 



The under side is brownish gray, crossed by two white 

 broken lines common to both wings, the inner forming 

 a W on the hind wings similar to that on the under side 

 of 31 Album, the two converging from before back, the 

 outer touching the points of the W, from which the two 



r 22* 



