13 



The caterpillar of the brown-tail moth is of a dark brownish color 

 and covered with yellowish-brown hairs. Beside these long hairs the 

 tubercles along the back and sides of the abdomen are covered with 

 shorter barbed hairs which cause a nettling and sometimes a serious 

 inflammation where they come in contact with the human skin. 

 Along both sides of the back is a succession of white spots or blotches 

 giving the appearance, on first observation, of two white lines. 

 Towards the rear end of the body of the caterpillar are two tuber- 

 cles which are of a dark orange or red color. When full grown it is 

 from one to one and one-third inches in length, (Figs. 4, 5). The pupa 

 is from one-half to five-eighths inches in length and of a dark brown 

 color. The moths, both male and female, are of a pure white color 

 with the exception of the tip of the abdomen, which has a tuft of 

 dark brown hair. The wing expanse measures about one and one- 

 third inches in the male and one and one-half inches in the female. 

 Unlike the gypsy moth, both male and female moths of this insect 

 are strong flyers, and in this way are much more rapidly distributed 

 than the former insect, (Fig. 1). 



The moths begin to fly at dusk, but the greater number may be 

 found from 10 o'clock until midnight. During the day they remain 

 at rest, hidden on the under side of leaves, branches, or other objects. 

 They are attracted to light, and in some cities of Massachusetts, where 

 , they are plentiful, accounts relate that they are so numerous around 

 the electric street lights as to resemble a miniature snowstorm and 

 almost obscure the lights. They are often attracted to moving trains, 

 electric cars, and steamboats, and may in this way be carried long 

 distances to infest new regions. Strong winds at the time of flying 

 are responsible for scattering them over wide areas. They are also 

 distributed in the caterpillar stage by being carried on automobiles, 

 carriages, electric and steam cars in the same way as the gypsy 

 moth. 



KEEP WATCH FOE THE INSECT. 



It is essential that everyone should become thoroughly acquainted 

 with this insect in all its forms, as well as with the gypsy moth so as to 



