280 
MOTHS AND BUTTERFLIES. 
side, as the accompanying illustrations will show, some being almost 
one plain gray tint, while others are marked with bands of brown, 
gray and white. 
This is a northern species, ranging over the northern temperate 
parts of the continent. I have never seen the larva, but, according 
to Mr. W. J. Holland, it feeds on the different species of willow. 
Mr. G. H. French says, “ The chrysalis is one inch long, of a beau¬ 
tiful green color, delicately reticulated, with six golden spots on 
the back.” The perfect insect is sometimes very common, especial^ 
in the hilly portions of New Hampshire, where one may take it in 
Grapta j-albuin. Under side. 
July in numbers. One of my brothers succeeded in taking several 
hundred perfect specimens of this species near Madison, in New 
Hampshire, last season. They were wild and shy, but were quite 
abundant. They frequented little used country roads, where they 
usually rested on the damp earth, sometimes several close together. 
When frightened they flew up and alighted on the trunks of poplar- 
trees, with their wings folded close together, the gray and brown 
color of the side exposed to view giving them the appearance of 
partially loosened pieces of bark. When struck at with a net while 
on the wing they sometimes feigned death by closing their wings 
and falling onto the road, with which their colors readily harmo- 
