D.i. 



jCherryGall 

 ^ only. 



Fi 



.Silh-Butfon-Gall. 

 \ $ only. 



? on| y- 



F2. 



.Sthencks-GAll- 

 ?*c? 



Ci 



PLATE VI. 



DI, ^!, FL and G L , the Galls formed by the parthenogenetic generations of the Gall- 

 flies which in their alternating sexual generations produce the Galls Dg, #2> ^2) an( i 

 fr 2 respectively. 



