INSECTS INJURIOUS TO VEGETATION 



43 



pecially true in New England and other Eastern States, where 

 such injurious insects as the gypsy moth, brown-tail moth, and 

 elm-leaf beetle have recently overrun the country, killing most of 

 the trees in their path. In other parts of the country the tus- 

 sock-moth caterpillars, leopard-moth caterpillars, and thousands 

 of others are a continual menace to the shade trees, and they 

 must be fought consistently if we do not want our streets to be 

 shorn of their beautiful vegetation. 



Fig. 25. — The white-marked tussock-moth: A, adult male; B, adult female 

 (wingless); C, caterpillar showing white tussocks on its back; D, pupse in 

 cocoons ; E, adult females laying eggs on bark of tree. 



Tussock Moth. — The white-spotted tussock moth is very 

 common in various parts of the country. The caterpillar (Fig. 

 25, C) is a little over an inch long, has a bright red head, and four 

 tufts of white bristles, the " tussocks," on its back. The adult 

 male (Fig. 25, A) is an inconspicuous, dull-colored moth with a 

 white spot near the margin of each wing. The adult female 



