^ig-4. 



E%.fi. 



Fig, 3. 



Plate 1. The Cherry-tree aphis, Myzus cerasi: Fig, 1, apterus viviparous, female; 1 a, head and 

 antenna of same; 2, winged migrant; 3, return migrant; 4, winged male; 4 a, head and antenna of 

 same; 5, oviparous female. 



