13 



moth caterpillar, and is similarly transported by vehicles and 

 pedestrians. The neighborhoods of travelled highways, therefore, 

 should be kept free from the brown-tail as well as from the gypsy 

 moth. 



The Species Costteasted. 



The gypsy moth and the brown-tail moth are constantly con- 

 fused in the minds of many people. The following marked differ- 

 ences between the two should be noted : — 



a. The egg cluster of the gypsy moth is rarely found on the 

 under side of a leaf, and is commonly a rather robust-looking 

 object, often two inches long and relatively thick and broad. 



The egg cluster of the brown-tail moth is almost always deposited 

 on the under side of a leaf, and is smaller and more slender than 

 a typical gypsy moth egg cluster. 



h. The gypsy moth caterpillar, when well grown, has a dark 

 grayish or sooty-colored body, marked conspicuously along the 

 back, counting from the head, with a double row of blue spots 

 followed by a double row of red spots. 



The brown-tail moth caterpillar, when well grown, is of a bright 

 tawny or orange-brown color, marked along each side of the body 

 by a conspicuous row of pure white spots, and having two bright 

 red spots at the lower end of the back. 



c. The female gypsy moth has a wing spread of about two and 

 one quarter inches, and her general color is a dingy white lightly 

 streaked and blotched with blackish and faint grayish. Her abdo- 

 men has no thick, conspicuous patch of golden or brownish hairs 

 at the tip. Though she has large wings (which she often flutters), 

 she does not fly, but merely crawls short distances. 



The female winged brown-tail moth is much smaller than the 

 female gypsy moth, with much less spread of wing. Her color 

 is a remarkably pure, unsullied, snow white. At the tip of her 

 abdomen is a very conspicuous, unmistakable, sharply contrasted, 

 thick, rounded patch of golden or brownish hairs. 



The female brown-tail moth is a swift, strong flyer, mainly flying 

 by night, and is greatly attracted to lights. 



d. The gypsy moth caterpillar never weaves a nest or web in 

 which to hibernate during cold weather. The gypsy moth winters 

 in the egg form, never as a caterpillar. 



The caterpillar of the brown-tail moth always weaves a hiber- 

 nating nest or web in which to rest torpid during the winter. 

 Throughout cold weather the brown-tail moth is in caterpillar 

 form, dormant and snugly ensconced inside its nest, which is 

 placed at or near the tip of a twig. With the warm weather of 



