BOMBYCIDS. 93 
The larva of this insect, like the two preceding, lives on the oak. It 
is of a dull grayish-green color, with indistinct stripes of pinkish, and 
is stippled with white dots. It is armed with short spines and horns, 
and, like the other species of the genus, is rough and hard. 
Anisota rubiecunda. 
Anisota rubicunda is very variable in its abundance or searcity, 
and is sometimes to be taken in numbers where, during the next sea- 
son, it may be rare. The species is usually very abundant in Wash- 
ington, D. C., where the larva lives on the maple-trees, frequently 
doing much damage. The trees in the Smithsonian grounds are in- 
fested with the caterpillars, and the perfect insects just out of their 
chrysalids may be taken by the dozen in June clinging to the grass 
stalks under the trees. One may even gather the live chrysalides as 
Chrysalis of Anisota rubieunda, 
they protrude from their burrows and have the pleasure of watching 
the imprisoned moth emerge in one’s own room. It is a beautiful 
insect. The fore wings are a delicate pink with a wide yellow band 
crossing them diagonally, while the lower wings are yellow with the 
lower margin pink. The body is yellow, and very soft and downy. 
The males are much smaller than their mates, and their coloring is 
usually much stronger. The insect spreads from one and a half to 
two and a half inches. The larva is two inches long, is light green 
striped longitudinally with dark green, and is horned in front, spiny 
along its back and sides, and is firm and rough to the touch. It 
