164 DESTRUCTIVE INSECTS OF VICTORIA. 



PLATE XXXV. 



The " Cabbage Aphis " (Aphis brassic^. — 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 Hemerobidfe (parasite). Natural size. 



10. Larva of Hemerobidse. Slightly enlarged. 



10a. Larva of HemerobidEe, with covering of skins. Natural size. 



11. Cocoou of Hemerobidfe. Natural size. 



12. Hemerobida3 (perfect insect). Slightly enlarged; 



13. Larva of St/rphi(s? 5/^., waiting to catch an Aphis for the purpose 



of sucking out its contents. Natural size. 



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



