THE TORTRICINA. 143 
stem of the plant. itself.. They then-get rid of their silk, and 
enter the cracks of the wood, or beneath the bark, and 
hybernate ‘until late in the spring; that is to say, they do not 
THE METAMORPHOSES OF THE VINE MOTH. 
1, 2, 3, 4. Eggs on the leaf. 5. Young caterpillars hanging by their web. 6. Leaf with 
chrysalis. 7. Caterpillar. 8. Moths. 
take any food, and remain in a sleepy and perfectly quiet 
state, without any metamorphosis; in fact, growth does not go 
on. When the hot weather commences, they climb up the 
tender shoots of the vine, and bind up the tiny leaves and 
