
238 THE INSECT WORLD. 
of a reddish green. One race raised in Tuscany, near Pistoia, 
has cocoons of a pale rose colour; and, lastly, mention has been 
made of cocoons of a purple colour. | 
me 
eye ‘ 
\ \ \ G 
a, 
\\ 
Yd q 
hi 
Dy 
Wan\ 

Fig. 216.—Larva, pupa, cocoon, and moth of Bombyx mori. 
When the cocoons are completed, the people in charge of the 
rearing establishments separate them from the heather and sell 
them to the silk-spinners. But they must manage to get these 
cocoons into a state in which they will remain entire during 

