164 DESTRUCTIVE INSECTS OF VICTORIA. 



PLATE XXXV. 



THE " CABBAGE APHIS " (APHIS BRASSIOE. LINN^US). 

 Fig. 



1. Flower stalk of cabbage, showing Blight (Aphis). Natural size. 



2. Winged female. Magnified. 



3. Wingless female. Magnified. 



4. Pupa of winged female. Magnified. 



5. 6, and 7. Various stages of the Aphis. Magnified. 



8. Ichneumon (parasite). Magnified. 



9. Eggs of Hemerobidae (parasite). Natural size. 



10. Larva of Hemerobidse. Slightly enlarged. 



10A. Larva of Hemerobidae, with covering of skins. Natural size. 



11. Cocoon of Hemerobidae. Natural size. 



12. Hemerobidae (perfect insect). Slightly enlarged. 



13. Larva of Syrphus? sp., waiting to catch an Aphis for the purpose 



of sucking out its contents. Natural size. 



(The little lines below figures are meant to represent the natural size of the insects.) 



