THE GYPSY MOTH. 



87 



The eggs of two spe- 

 cies of our commou tiis- 

 soek moths might be 

 readily mistaken for 

 those of the gypsy by 

 oue unfamiliar with tlie 

 latter. The eggs of the 

 Eusty Tussock m o t h 

 {Xotolophus a n f i q u a 

 Linn.), which is the 

 more common species, 

 except iu 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 

 distinguishable, as seen 

 in Figure i. The eggs 

 of the common White-]\Iarked Tussock moth {Hcmcro- 

 campa hucostigma S. & A.), \vhicli is common in Southern 

 New Hampshire and southward, often doing serious damag" 

 to shade trees in the cities of the ]\Iiddle States, are covered 

 with a ■white frothy substance and laid iu a compact mass 

 upon the trunk or limbs of a tree, and are not unlike the egg 

 masses of the gji^sy moth. The mass of the tussock moth is 

 pure white, wliile that of the g.vpsy 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 egg.s of the tussock moth (see Figure 

 5, which illustrates the well-known tussock caterpillar), are 

 usually laid on the eoeoon from which the female emerged, 

 while those of the g^'ps,v moth are laid directly on the bark 

 of the tree. 



Fig. 4.— Eggs of Rusty Tussock Moth. 

 {Notolophus antiqua Linn.) 



