26 LEPIDOPTERA OF NORTH AMERICA. 



2. C. m:-ircellina Fah. E. S. Ill, 1, 209. Figured in Donov. Nat. Repos. 

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

 cellina Godt. 



It is ahnost iinpossihle to distinguish tliis species from C. enhule. 

 The most positive character is, that the secondaries are less 

 rounded, and the anal angle more prominent. 



The ripper side of the male is similar to that of C. euhiile; but the 

 underside has the points and tortuous lines more obsolete; the 

 geminote ferruginous points of the primaries are rei»laced l)y a 

 red or ferruginous point, cut l)y a small yellow nervure ; and tlic 

 two discoidal, silvery i)oints of the secondaries, are a little smaller. 



The upper side of tlie female has the same designs as Eiibule, 

 only that the secondaries have the posterior border very indistinctly 

 marlced by small brown lines or s[)ots. 



Under side similar to C. euhide, 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; antennte 

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

 extends more them a fourth of (heir lenytJt. Abdomen shorter than 

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

 border black. 



Colias differs from Pieris in the shorter antenna?, 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 sjiot on tlie insertion of the median 

 nerve, at the base of secondaries below. 



