THE MOTH AND ITS EGGS. 9 



In feeding, the tent caterpillars devour the substance of the 

 leaf, often taking all but the midrib, but more commonly leav- 

 ing parts of the leaf along the midrib as shown in Fig. 3. If 

 many caterpillars are on the tree, its leaves will be entirely 

 eaten off, a condition shown in the photograph reproduced in 

 Fig. 7. 



