112 DESTRUCTIVE INSECTS OF VICTORIA: 



PLATE XIII. 



" Cherry Borer " (Maroga gigantella). 



Fig. 



1. Cherry branch attacked by borer, appearance of sawdust-like 



covering, indicating grub at work. (From nature.) 



1a. Branch with covering removed, showing damage done by larvae. 

 (From nature.) 



2. Larva in bore, where it retires when not feeding. (From nature.) 



3. Larva (or grub) ; top view. Natural size. (From nature.) 

 3a. Larva (or grub) ; under view. Natural size. (From nature.) 



4. Head, and first three segments of larva ; side view. (From 



nature.) 



4a. Head, and first three segments of larva ; ventral view. (From 

 nature.) 



5. Perfect insect. Natural size. (From nature.) 



