Genus PAPILIO.—Linnavs. 
Generic character.—The antenne growing thicker 
at the extremities, in general club-shaped, or capi-_ 
tated ; the wings, when at rest, erect, and meeting 
upwards. The species all fly by day. 
This genus comprehends those insects called in 
English Butterflies, which fly by day. The first pair 
of legs in some of them are short, and used rather as 
hands for cleaning themselves, than as feet for walk- 
ing. Their flight is in general quick. The caterpillars 
have all sixteen feet, and are for the most part 
prickly. Some, however, are smooth, others set with 
short hairs; some have a sort of tail, and others 
have two blunt horn-like feelers on the head. 
Linneus divides this genus into six families. The 
names of the first, being mostly exotic, he has taken 
from those of the Trojan and Grecian chiefs ; those 
of the others, as most of them are European, and 
their history and habits better known, are taken 
chiefly from the plants on which the caterpillars feed. 
I, Equirzs.—Those whose upper wings are longer 
from the posterior angle to the apex, than from 
