A handbook of the destructive insects of Victoria, with notes on the methods to be adopted to check and extirpate them . t may here be remarked that an illustration of themachine invented by Mr. Pearson, and alluded to above,is given at the end of this part of the book; that of theStrawsonizer beins; in Part I. 164 DESTRUCTIVE INSECTS OF VICTORIA. PLATE XXXV. The Cabbage Aphis (Aphis brassice.—).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 sta
A handbook of the destructive insects of Victoria, with notes on the methods to be adopted to check and extirpate them . t may here be remarked that an illustration of themachine invented by Mr. Pearson, and alluded to above,is given at the end of this part of the book; that of theStrawsonizer beins; in Part I. 164 DESTRUCTIVE INSECTS OF VICTORIA. PLATE XXXV. The Cabbage Aphis (Aphis brassice.—).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 Hemerobida? (parasite). Natural size. 10. Larva of Hemerobidas. Slightly enlarged. 10a. Larva of Hemerobidae, with covering of skins. Natural size. 11. Cocoon of Hemerobidae. Natural size. 12. Hemerobidas (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.). XXXV THE CABBAGE APHIS. 165 CHAPTER XXXIX. THE CABBAGE APHIS. (Aphis brassicce. Linn.) Order: Hemiptera. Sub-order: Honroptera. Family: Aphididce. The Cabbage Aphis, better known as Cabbage Blight,is unfortunately too well known to need any lengthy de-scription here ; and, as has been done all along, and willbe continued to the end of the book, we rely more uponthe plates with which the parts are illustrated than onleugthy descriptions, which in illustrated works of thiskind would seem hardly necessary. This pest, which has existed in Victoria since the veryearly days of the colony, is undoubtedly an importationfrom Europe ; but how and by what means it has beenintroduced here, I, of course, cannot say. It may havereached us through the agency of some plants whichwere so commonly imported in Wardian-cases (boxescovered with glass), in which plants of many kindswere
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