SUBFAMILY PAPILIONIN^E 
Butterfly .—Generally large, and often with the hind wings 
adorned by tail-like projections. The most characteristic struc¬ 
tural feature of the group'is the absence of the internal vein of 
the hind wings. The submedian vein occupies the position usu¬ 
ally held in other subfamilies by the internal. 
Early Stages .—In that portion of the group which includes 
the genus Parnassius and its allies, the caterpillars are not, so far 
as is known, provided with scent-organs, and pupation takes 
place upon the ground, or among loosely scattered leaves, which 
are interwoven, at the time of pupation, with a few strands of 
silk. The genus Papilio and its allies have large, fleshy, more or 
less cylindrical caterpillars, possessed of osmateria, or offensive 
scent-organs, and a general resemblance runs through the chrysa¬ 
lids of all species, which are attached by a button of silk at the 
anal extremity and supported in the middle by a silk girdle. 
Genus PARNASSIUS, Latreille 
(The Parnassians) 
“ Some to the sun their insect wings unfold, 
Waft on the breeze, or sink in clouds of gold; 
Transparent forms, too fine for mortal sight, 
Their fluid bodies half dissolv’d in light.” 
Pope. 
Butterfly .—Of medium size, with more or less diaphanous 
wings, generally white or yellow in color, marked with black 
spots and round pink or yellow spots, margined with black. 
The head is relatively small, thickly clothed with hairs. The an¬ 
tennae are short and straight, having a gradually thickened club. 
The palpi are very thin, straight, and clothed with long hairs, 
304 
