BUTTERFLIES OF MAINE. 37 
ribs, half of which reach the top, while the rest extend not 
more than three-fourths of the way up. Between these ribs 
are numerous Cross strie. 
The eggs hatch in about twenty-five days, and the young 
larva is about one-t.velfth of an inch long, of a pale yellowish 
brown color, with a brown head. All the segments except 
the first two and the last have a row of eight dark spots, 
from each of which arises one or two long, black, curved 
hairs. These insects, as soon as hatched, crawl under some 
protecting object, as a stick or stone, where they hibernate 
during the winter. In the spring they revive from this 
state of lethargy, crawl to the growing violets and at once 
begin to feed. They molt five times before reaching ma- 
turity, changing their appearance at each molt. 
The mature larva is one and three-fourths inches long, 
velvety black, banded and striped with ochrey yellow, 
changing to dull orange or red, and furnished with six rows 
of tapering fleshy spines each of which has several small 
black bristles. The two rows along the back are silvery 
white with black tips, those at each end of the rows some- 
what smaller. The spines of the rows along the sides 
are smaller and yellowish or orange at the base. The head 
is reddish above and black beneath. They now seek some 
suitable place and change to a pupa about an inch long, 
suspended by the end. In this stage they remain about 
seventeen days. 
This is not a common insect in Maine and is confined to 
the western part. I have not heard of its occurrence east of 
the Kennebec river. It has been taken at Waterville, 
Brunswick, Norway and Portland. 
