PLANT LICE 



weather may give the young lice a long wait for their 

 first meal. 



The approaching time of hatching is signaled in most 



Fig. 93. Hatching of the green apple aphis, Aphis pomi 



A, the egg. B, an egg with the outer coat split. C, the same egg with the 



inner shell split at one end. D-F, three successive stages in the emergence of 



the young insect. G-J, shedding the hatching membrane. K, the empty 



eggshell. L, the young aphid 



J 59l 



