THE BROWN-TAIL MOTH 



117 



Fig. 14.— Pupae, Ih natural size, 

 female. 



Male and 



mottled Avith darker 

 brown. The body is 

 dark brown or black, 

 well marked with 

 patches of orange and 

 covered with numerous 

 'tubercles bearing long 

 barbed hairs. The tu- 

 bercles along the back 

 and sides of the abdo- 

 men are thickly cov- 

 ered with short brown 

 hairs in addition to the 

 longer ones, which give 

 these tubercles a vel- 

 vety appearance under 



a lens. It is these short hairs (Fig 12 at 3) which are the 



''nettling hairs." The white dashes along the sides of the 



abdomen are more prominent and enable the immediate 



identification of the 



caterpillar of t h e 



brown-tail moth from 



any other in Xcav 



England. (See Fig. 



11.) 



Pupa. — During the 



second week in June 

 the caterpillars spin 

 up thin silken co- 

 coons of white silk 

 among the leaves, a 

 number often spin- 

 n i n g cocoons to- 

 gether, so as to form 

 a considerable mass 

 of web. The cocoon 

 is so loose in struc- 



,1 , , , , ^ Fig. 15.— Brown-Tail Moths, natural size. 



ture tnat tne cater- ^j^^^ above, female below. 



