The Grain Aphis 

 [Siphonophora granaria.) 



a Apterous vhifntrciLS female,, nat. size 

 b. a" d d magnified. 



c Wbufed oviparous female, magnified, 

 d Part of an, ear of wheat- studded -Kith aphides 

 struck by OJL Epl<- 



