40 DESTRUCTIVE INSECTS OF VICTORIA : 



PLATE XXXVIII. 



The " Wheat Aphis " (Siphonophora sp.). 



*ig. 



1. Wheat stalks and ear, showing blight. Natural size. Fiom 



uatnre. 



1a. Wheat stalks, full ear, showing blight. Natural size. From 

 nature. 



2. Winged viviparous female of Aphis. Magnified. From nature. 



3. Pupa of above. Magnified. From nature. 



4. Pupa of Aphis. Magnified. From nature. 



