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ANNUAL REPORT OF NEW-YORK 
When first formed it is of a dull white color with the head pale 
green and a pale brown stripe along the back; but it gradually 
changes to a darker color, and the shell which remains in the 
cocoon after the insect has come from it is sometimes black and 
sometimes chestnut brown irregularly spotted and blotched with 
black. 
Dr. Harris states that the chrysalis state of this insect lasts 
from fourteen to seventeen days. The specimen which Abbot 
bred was twenty-six days in its pupa form. Of nine early ma¬ 
tured caterpillars which I had placed in a box the first 
formed its cocoon on the morning of June 2d; two others spun 
themselves up in the afternoon and two others in the evening 
of the same day, and the remaining four enclosed themselves 
the following night. The first moth was found in the box on the 
morning of June 23d, four more were found in the box the fol¬ 
lowing morning, three more came out in the course of that day, 
and the remaining one that night. Three weeks thus appears to 
be the usual period that these insects repose in their pupa state. 
The winged MOTHS (see plate 3, fig. 3, 4) are of a dull reddish or fox color, 
different individuals varying in the depth of their coloring, the females (fig. 4) 
being often paler, approaching to grayish, and the males (fig. 3) often darker, 
sometimes brown with scarcely any tinge of red. The mark by which this 
species is most readily distinguished is two straight white stripes which extend 
obliquely across the fore-wings, parallel to each other and to the hind margin, 
dividing the wing into three nearly equal portions. The anterior stripe is often 
slightly broader than the posterior one, especially towards the outer margin 
of the wing. In some females these stripes are placed nearer to each other; and 
though commonly parallel, in some instances from the middle of the wing to 
the outer margin, or even through their entire length they diverge from each 
other. In the males they are less variable, but the space between them in this 
sex is frequently pale gray, and there are also numerous gray hairs on the 
basal portion, and a few towards the apical margin also. The hind wings are 
of the same color as the anterior ones, but without any pale marks. On their 
under sides the wings are the same color as above, and commonly a white band 
extends across both pairs near their middle, that on the fore wings being 
straight and widened at its outer end, that on the hind wings broader and 
curved. The fringe on tho fore wings has a white alternation near the outer 
angle and another broader one on the middle; along the inner angle and on the 
hind wings it is white slightly varied in places with dull reddish. These colors 
of the fringe are much more distinct in the darker colored varieties of the male. 
The hairs with which the thorax is densely coated are often grayish. The 
stalk of the antenna is dull white and its branches are dark rusty red, some¬ 
times with a whitish line on their outer side. The feet are white or yellowish 
