PLATE XLV. 





fy 
: mie 
Ls {brown ) 

. cocoon 
fold cn 
leat; 
= old 
mene 
along 
yen 
irregular 
brown patch; 
leaf-suxface 
eaten away. 

epvdermes of upper leaf 
Set face (orange - gellew). 
Apple leaves showing damage by larva of Gracillaria zachrysa:—a, leaf showing 
mines, fold, and patch eaten. 6, Lower surface of leaf showing cocoon.  c, 
older leaf with young larva. Leaf opened out. The portion sewn together (upper 
surface) marked with dotted line. Portions of epidermis of leaf nibbled by 
larva (whitish), marked in black. d, Young leaf. Edges sewn together longi- 
tudinally. e, Half-grown leaf containing larva, completely folded along edges, 
opened up, showing method of feeding of larva. 
