100 



LEAF-MIXING INSECTS 



Fig. 37. The apple leaf -miner, Lyonetia speculella. A, a bit of an apple 

 leaf showing frass extruded from holes in the mine; B, pupa; C, larva; 

 D, upper side of leaf showing mines; E, cocoon, F, lower side of apple leaf 

 showing appearance of mines. Drawn by S. W. Frost. 



