114 DESTRUCTIVE INSECTS OF VICTORIA. 



PLATE XXX. 

 Phylloxera, or Grape Louse op the Vine (Phylloxera 



VASTATRIX. — PlANCHOn). 

 Fig. 



1. Egg recently laid. 



2. Egg near hatching. 



3. Hatching of young phylloxera. 



4. Larva at the first stage. 



5. Larva at the second stage. 



6 and 7. Third age, upper and under side. 

 8. Female of the galls, a little longer than the preceding one. 

 9 and 10. Pupae, above and below, a little longer the female apter. 

 11 and 12. Winged female, above and below. 



13. Male. 



14. Impregnated female. 



15. Egg from which the male proceeds. 



16. Egg from which the female proceeds. 



Note. — All the above figures are highly magnified, and have been 

 drawn from the illustrations issued by Hachette and Co., Paris. 



