276 THE INSECT WORLD. 
the morning you can. hear the noise made by the caterpillars 
while eating. As they increase in size every day, the damage 
they do goes on increasing, and has not reached the maximum 


























































































































































































































































Fig. 290.—The Vine Pyra.is in its three states. 1. Leaf with batches of eggs laid upon it. 2. Batches 
of recently laid egos. 3. Egesin which caterpillars can be perceived. 4. Batch of eges from 
which the caterpillars have already emerged. 5. Small caterpillars hanging by threads. 6. Leat 
with the chrysalis. 7. Caterpillar. 8 Moth. 
of intensity till the moment when the caterpillars are about to 
change into chrysalides. They are then three quarters of an inch 
long and of a yellowish green colour. 
From the 20th of June to the 10th of July, they seek shelter 
