11 -J 
THE GIPSY MOTH. 
Life History. 
Like all insects of its class, the gipsy moth passes through 
four different stages during its life history. 
The Egg. — (Figure 4.) The eggs are laid in July and 
August, in a mass of 400 to 500, covered with yellowish 
hairs from the body of the female. The individual mass is 
of an irregular oval shape, one and one-half by three- 
fourths inches, as shown natural size in Figure 2, and is 
usually deposited on the 
bark of trees, but where 
abundant on fences, 
stones, buildings, etc. 
The eggs of two spe- 
cies of our common tus- 
sock moths might be 
readily mistaken for 
those of the gipsy by 
one unfamiliar with the 
latter. The eggs of the 
Rusty Tussock Moth 
{Notolophus antiqua 
Linn.), which is the 
more common species, 
except in southern New 
Hampshire, are usually 
laid on the leaves which 
remain attached to the 
tree and are laid in but 
a single layer with no 
protecting cover over them, so that each egg is distinguish- 
able, as seen in Figure 4. The eggs of the common White- 
Marked Tussock Moth (Hemerocampa leucostigma S. & A.) 
which is common in southern New Hampshire and south- 
ward, often doing serious damage to shade trees in the cit- 
ies of the Middle States, are covered with a white frothy 
substance and laid in a compact mass upon the trunk or 
limbs of a tree, and are not unlike the egg masses of the 
.j 
Fig. 5. — Eggs of Rusty Tussock Moth. 
(Notolophus antiqua Linn.) 
