106 THE BUTTERFLIES OF THE 



SUBFAMILY PJERIN^E. 



Iii the United States this subfamily contains all of 

 the Papilionidse except the genus Papilio. The butter- 

 flies do not have the tail to the hind wings, though a 

 few have an angle in the outer margin of these wings ; 

 and the inner margin of the hind wings is convex and 

 bent downward so that the two sides form a gutter, in 

 which the abdomen apparently rests. The larvae are 

 cylindrical, have a few scattered hairs over the body, 

 sometimes a fine short pile also, but lack the scent- 

 organ of the Papilios. Some of the chrysalides, as Pieris 

 and Colias, resemble those of the Papilios except in size, 

 but others are strongly projecting ventrally so as to be 

 nearly triangular. 



9. PIERIS ILAIRE, Godt. 



Expanse of wings 2.5 inches. 



Wings white ; the apex brownish black, the costa and 

 the anterior two-thirds of the outer margin bordered with 

 the same ; a very slight border of black in the fringe of 

 the hind wings. This color is not repeated on the under 

 side except along the costa. The basal part of the costa 

 of the hind wings is tinged with dark yellow. Body 

 black, with white hail's. 



Indian River, Florida; Texas, Arizona. 



10. PIERIS MONUSTE, Linn. 



Expanse of wings from 2.5 to 3 inches. 

 AVings white, costa black, a black border on the outer 

 margin, covering about the outer fourth of the wing at 



