222 



FOREST ENTOMOLOGY. 



asserted by several German writers that when the oak does not yield 

 sufficient food for the larvae, they often leave the oak, and complete 

 their full development on other species of trees — viz., lime, ash, beech, 

 mountain-ash, maple, and other species of hardwoods. I have never 

 found it on Turkey oak. 



It is also worthy of note that while , generally distributed over the 



Fig. 220. — Foliage of oak destroyed by larva; of the Green Tortrix Moth. 



country, it is not a common species in ITorthumberland, One or 

 two woods, however, on Tyneside are often badly attacked, and in 

 Co. Durham it is frequently very common. Fig. 220 is a photograph 

 of an injured oak-shoot. 



The eggs are laid the season preceding the larval attack. They 

 are doubtless deposited on the immediate vicinity of the buds, but 

 opinions diifer as to the precise spot, and I have not actually dis- 

 covered them. 



