24 BUTTERFLIES OF MAINE. 
- Body, black, with a yellow stripe along each side. 
The larva feeds on the leaves of apple, plum, wild and 
cultivated cherry, thorn and basswood. 
The eggs are deposited singly on the leaves, and are 
nearly globular, smooth, dark green when first laid, but soon 
changing to greenish yellow, and speckled with reddish 
brown. Ina little less than two weeks, the eggs hatch and 
the young are about one-tenth of an inch long, cylindrical, 
largest towards the head, of a brownish color, mottled with 
black, and with a large whitish spot on the middle of the back. 
The full grown larva is 
about one inch and a 
half long, of adeep green 
STB BFS Se Sty py be PE LLEPEL NA Eh ffs 
a3 GEA ee poet hse Pa ETS Ge 
if 25 bE NAY PKs ma 
color and paler beneath. 
Fig. 2. Larva of Papilio turnus (nat. size). The head is small, com- 
pared with the segments following, and of a reddish brown 
color. The front edge of the second segment, and also the 
hinder edge of the fifth, is yellow; and the front edge of the 
sixth is velvety black. On the side of the fourth segment is 
a yellow eye-spot with a black center. As the larva ap- 
proaches maturity, the green color grows dull, and gradually 
changes to a dark reddish brown mottled with grayish on 
the sides. The larva then seeks some place of shelter, where 
it spins a button of silk in which the hind feet are secured 
and a loop of silk to support the forward part of the body, 
and after a short time casts off its skin and discloses a dull 
brownish pupa, in which state it passes the winter, and 
emerges the following June. 
These insects have been quite abundant for a few years past, 
but their insect enemies and the birds hold them pretty well 
in check. 
As each female lays about 200 eggs, they would soon mul- 
tiply to such an alarming extent as to destroy the trees upon 
which they feed, were it not for these natural remedies. 
There is no doubt that spiders destroy the eggs and young 
larve to amuch greater extent than has generally been sup- 
posed. 
