20 LEPIDOPTERA OP NORTH AMERICA. 



ANTHOCARIS BOISD. 



Head rather small, short ; eyes moderate, a little prominent ; 

 palpi rather long, somewhat divergent, bristled with 'stiff hairs, 

 somewhat fasciculate ; last article thin, very distinct, acicular, 

 scarcely as long as the preceding; antennae rather short, joints 

 distinct, terminated more or less abruptly by an ovoid, compressed 

 club. Abdomen not robust, a little shorter than the secondaries. 

 Wings delicate, discoidal cellule closed ; the secondaries lightly 

 embracing the under part of the abdomen. 



Larva slender, pubescent, attenuated at both extremities. 



Chrysalis naked, navicular; rings immovable, carinated, more or 

 less arcuated, destitute of lateral points ; attached by the tail and 

 a transverse line. 



Anthocaris differs from Pieris in the form of the chrysalis, which 

 is navicular, equally attenuated at both ends, and in the antennae 

 of the perfect insect. It can easily be distinguished from the 

 allied genera by the delicate texture of the wings and the auroral 

 or reddish spot which covers more or less of the summit of the 

 primaries, at least of the males in two of our species. 



1. A. genutia Fab. Ent. Syst. Ill, 1, 193. Lherminieri (fern.) Godt. 

 A. Midea? Hiibn. 



Wings white ; primaries, with external border concave, and the 

 summit pale orange ; upper edge near the base, sprinkled with 

 grayish, a small black point near the middle. 



The fringe of the secondaries bordered with a range of small 

 black spots. 



Under side of primaries white, with the summit greenish, small 

 black point in the middle. 



Under side of secondaries marbled with green. 



Expands an inch and an eighth. 



The female is destitute of the orange summit, but has blackish 

 spots along that edge. The black spot on the middle of the 

 primaries is larger than in th'e male. 



Southern States. 



BOISD. 



