PLATE XXXI 



Fig. I. — Agrilus ■vittaticolUs: 

 Fig. 2. — Agrilus vittaticolUs: 

 Fig. 3. — Agrilus vittaticolUs: 

 X 6. Original. 

 Fig. 4, — Agrilus vittaticolUs: 

 Fig. 5. — Agrilus vittaticolUs: 



Egg on trunk of young service tree. Original. 

 Feeding form of larva. X 4- Original. 

 Contracted form of larva as taken from pupal cell. 



Pupa. X 8. Original. 



a, Adult, or beetle; b, claw; c, antenna, a, X 5; 

 b, c, highly magnified. Original. 



Fig. 6. — Xylophruridea agrili, a parasite of the apple root borer; Pupa. X 8. 

 Original. 



