^' LARViE THK PREY OF BIRDS, &C. 
kind of hollow passage, which they have 
gnawed hetwecn the wood and the bark 
of the tree. 
Lucy, They must be quite safe there, 
for no bird can find them out. 
Mother. Not so safe as you think : 
many smaller creatures take advantage of 
the labours of the caterpillar, and usurp 
its hollowed house ; and some of these 
not only feed on the tree, but devour 
the caterpillar. And even from birds it 
is not quite secure ; both the wood- 
pecker and the creeper run up and 
down the stems and branches, seeking 
for grubs ; and woe to the unlucky ca- 
terpillar that puts out its unwary head 
when one of these active enemies is 
near ! 
Lucy. Do many sorts of caterj)illars 
live in this way under the bark ? 
Mother. Several of our most beau- 
tiful and largest species. 
Now, my love, I have promised your 
sister Fanny to answer her botanical ques- 
