92 BUTTERFLIES OF MAINE, 
the back, and one near the base on each side. <A long, 
curved, white hair arises from each of these points. Head, 
black and shining, nearly as large as the second segment. 
In three days they molt their skins, when they are .08 
of an inch long, flat on the lower side, of an elliptical 
outline, the back flat at the top and sloping towards the base. 
The color is russet with the whole surface irregularly dotted 
with black, from which arise white hairs. Head black, long 
and narrow, sminaller in proportion to the second segment than 
in the last stage, and partly concealed in the second segment. 
In three days more they molt the second time, after which 
they are .12 of an inch long, broader and flatter than before, 
russet, varying towards vinous, interspersed with green. 
On each side of the narrow ridge along the middle of 
the back, there is a slightly raised edge caused by the 
tubercles, and there is a fold along the side of the base 
of the body, and the hairs from this and the ridge are longer 
than elsewhere. ' 
In three days more the third molt is made, when they are 
-20 of an inch long, pale green along the back with vinous 
on the sides, but varying in color. In five days they molt 
the fourth time, when they are .36 of an inch long and the 
greatest breadth is about one-fourth as much as the length. 
They are of the same general form as before, but highest in 
front and sloping backwards. Both ends are equally rounded 
when the head is drawn into the second segment, each 
segment rounded on the back, and the whole upper surface is 
covered with fine white hairs. Color, greenish with darker 
green lines, and oblique vinous lines on the sides. IJlead 
black. In about five days from the fourth molt, they attach 
themselves and change to the pupa stage. The pupa is .26 
of an inch long by .10 wide, shaped much like the mature 
larva, of a greenish, brownish or sordid white color, with 
three rows of black dots, and sparingly clothed with whitish 
hairs. 
In from nine to eleven days the butterflies emerge. This 
history of the early stages of this butterfly is from the 
