26 LEPIDOrTERA OF NORTH AMERICA. 



2. C. marcelliaa Fl>. E. S. Ill, 1, 209. Figured in Donov. Nat. Eepos. 

 pi. 0. Sm. Abb. I, pi. 5. Boisd. et Lee. pi. 24. C. eubule et mar- 

 cell ina Godt. 



It is almost impossible to distinguish this species from G. eubule, 

 The most positive character is, that the secondaries are less 

 rounded, and the anal angle more prominent. 



The upper side of the male is similar to that of C. eubule; but the 

 under side has the points and tortuous lines more obsolete ; the 

 geminate ferruginous points of the primaries are replaced by a 

 red or ferruginous point, cut by a small yellow nervure ; and the 

 two discoida!, silvery points of the secondaries, are a little smaller. 



The upper side of the female has the same designs as Eiibulf, 

 only that the secondaries have the posterior border very indistinctly 

 marked by small brown lines or spots. 



Under side similar to 0. enlide, only that it is ordinarily strewed 

 with small ferruginous atoms. 



Larva deep citron yellow, punctured with black, and a blue 

 transverse ray on each segment ; abdomen below and feet yellow, 

 with a lateral range of small blue lines above the feet. Feeds on 

 Cassia. 



Southern States. 



BOISD. 



COLIAS FAB. 



Inferior palpi much compressed, covered with short silky hairs, 

 rose red; last article much shorter than the preceding ; antennae 

 straight, short, rose red, terminating in an obtuse cone, which 

 extends more than a fourth of (heir length. Abdomen shorter than 

 the secondaries ; thorax robust ; color more or less lively yellow ; 

 border black. 



Colias differs from Pieris in the shorter antennae, insensibly 

 terminating in an obconical club ; in the black border common to 

 all the wings; in the primaries, usually having a black discoidal 

 point, and the secondaries a central point, orange above and 

 ordinarily silvery below, accompanied by another small point, in a 

 small reddish or ferruginous spot on the insertion of the median 

 nerve, at the base of secondaries below. 



