1916 



ENTOMOLOGICAL SOCIETY. 



169 



photograph) one on a leaf in the orchard and another on the bark of a young 

 apple tree. The mass is pale green before hatching and then becomes trans- 

 parent and almost colorless. The eggs lap one over the other somewhat as shingles. 

 The mass is a little larger than that of the Fruit-tree Leaf-roller and contains 

 an average of about 100 eggs. When ready to hatch, as in the photograph, the 

 black heads of the little larva? show through the mass very distinctly and make 

 it easy to count the eggs. 



Full-grown larvae: 1 and 2 of A. semiferana, the 

 remainder of A. argyrospila. (Natural size.) 



Empty pupal cases (a) of A. semiferana, (ft) of A. argyrospila. 



Note that the former are very much lighter in colour, 



often being nearly white. (Natural size.) 



12 E.S. 



