THE GYPSY MOTH. 



87 



The eggs of two spe- 

 cies of our common tus- 

 sock moths might be 

 readily mistaken for 

 those of the gypsy by 

 one unfamiliar with the 

 latter. The eggs of the 

 Kusty Tussock moth 

 {Notoloplius a n t i qua 

 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 q^^ is 

 distinguishable, as seen 

 in Figure 4. The eggs 



of the common AMiite-Marked Tussock moth {Hemero- 

 campa leucostigma S. & A.), which is common in Southern 

 New Hampshire and southAvard, often doing serious damag'^ 

 to shade trees in the cities 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 gypsy moth. The mass of the tussock moth is 

 pure white, while that of the gypsy is yellowish or dark 

 creamy, from the hairs or scales from the body of the female 

 which cover it, which are entirely absent from the eggs of 

 the tussock moth. The eggs of the tussock moth (see Figure 

 5, which illustrates the w^ell-known tussock caterpillar), are 

 usually laid on the cocoon from which the female emerged, 

 w^hile those of the gypsy moth are laid directly on the bark 

 of the tree. 



Fig. 4.— Eggs of Rusty Tussock Moth. 

 {Notolophus antiqua Linn.) 



