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Stale Horticultural Society. 



what larger, with a more swollen body. A picture of one is shown, nat- 

 ural size, in Fig. 4 a. 



lii.*^ '-.U 



Fig. i. Tussock-Moth, a, female; e. male; c, d, pupae. 



The adults of the second brood appear the latter part of August, and 

 the females deposit their eggs in a short time on the cocoons, out of which 

 they have just emerged. The cocoon is gray, made of silk, with some of 

 the hair from the larva woven with it, and the eggs are deposited in a 

 mass upon the cocoon, usually three or four layers in depth, and are 

 filled and smeared over with a white, glutinous substance, which holds 

 them together and protects them from the weather. These cocoons are 

 fastened securely to the tree, and are usually partly enclosed in a leaf. 

 During winter, while the leaves are off the trees, one can readily find 

 these cocoons with the white tgg masses attached. These eggs remain 

 over winter and hatch the following spring, about the middle of May, 

 into small, hairy larvae, which begin at once to feed upon the leaves. 

 When these larvae become full-grown, they are about one and a half 

 inches in length, and are among our most handsome caterpillars. Their 

 coloring is yellow, black and red, with tufts of hairs arranged according 

 to the picture of a full-grown larva, shown in Fig. 5. 



Tussock-Moth, full grown larva. 



When a limb upon which these larvae are feeding is disturbed, they 

 drop down by means of a silken thread and stay suspended until the 

 disturbance is over, very much after the habit of our well-known 

 canker-worm larvae. These first-brood larvae become full grown by 

 the fore part of July, and then spin their cocoons on the tree they have 



