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270 THE INSECT WORLD. 
green, with black warty spots, each having a hair of the same 
colour. They are wonderfully lively, the moment they are dis- 
turbed taking refuge in a rolled leaf, which serves them as a 
dwelling place. If they are pursued, they let themselves fall by 

Fig. 277.—Argyrolepia 
zeneaha, 
the aid of a thread, and do not re-ascend till they think they 
can count on repose and security. ‘This, and many kindred species, 
do a great deal of damage to our trees. They strip them of 
their leaves, and sometimes give them, during the first days of 


Fig. 278.—Sericoris Zinkenana. Fig, 279.—Sarrothripa revi ayana. 
ton] 

summer, the sad and melancholy appearance which they present. 
in the middle of winter. 
We have just alluded to the tube formed of a rolled leaf, in. 
which the caterpillar takes refuge, and in which it lives. This. 

Fig. 280.—Cochylis francilana. Fig. 281.—Choreutes dolosana. 
tube it constructs itself. Réaumur has devoted a magnificent 
chapter of his Memoirs to observations on the skill with which 
divers species of caterpillars fold, roll, and bind the leaves of | 
plants and trees, especially those of the oak. Let us listen to: 
the great observer :—“ If one looks attentively at the leaves of the | 
oak-tree towards the middle of the spring, many of them will be 
seen to be rolled in different ways. The exterior surface of the 
4 

