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DESCRIPTION OF THE INSECT. 



The eggs. The eggs of the gipsy moth are laid in masses (fig. 2) of 

 about five hundred. The individual egg is minute, about the size of a 

 pinhead, and is salmon-colored when first laid, but turns dark in the 



FIG. 2. Egg mass of the gipsy 

 moth (Porthetria dispar). 

 (From Kirkland.) 



FIG. 3. Full-grown caterpillar 

 of the gipsy moth. Natural 

 size (from Insect Life). 



course of a few weeks. Each egg mass is yellowish in appearance and 

 seems covered with hair. It is somewhat oval, being one-half of an 

 inch long and about three-fourths of an inch wide. During winter, 



FIG. 4. Pupa of gipsy moth. Natural size (from Insect Life). 



from exposure to moisture in the atmosphere, it becomes dingy white 

 in color. 



The larva or caterpillar. The young larvae or young caterpillars are 

 dark in color and well furnished with dark hairs. The full-grown 



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