INSECT ENEMIES. 107 
pulp of the leaf, leaving a pretty network of veins ; but 
in a few days they devour the whole leaf, and when full 
grown sweep every thing before them. Side by side in 
solid phalanx along the twigs and branches, they feed 
——+4 
Fig. 82.—BEFORE THE FIRST 
MOULT., 
MOULT, 
ARAL) AOS {i 
RT tt ra BN fir 
1\ / 
— , he Nina K 4 
5 ry WAS yy f Y a 
" 
\J 
ont 
i. 
ey, 
M4 
Fig. 84.—BEFORE THE THIRD 
MOULT. Fig. 86.—AFTER THE FOURTH MOULT. 
gregariously, resting between meals in the same order, 
with both head and tail recurved over the body. If 
touched or otherwise disturbed they at once throw their 
heads from side to side in a spiteful manner, or let them- 
selves down by a silken thread, always double, which 
they rapidly spin out of their mouths. Their bodies are 
Fig. 88.—CHRYSALIS. 
Fig. 87.—LARVA AT REST. 
well covered with long, soft, whitish hairs. They moult 
four times, and attain their full growth in five or six 
weeks, and are then about two inches long. <A_ black 
stripe extends along the back, and three black stripes 
