682 



THE MONTHLY BULLETIN. 



Fig. 371. — The work of the Western twig borer, Amphicerus 

 punctipennis Lee, on living twigs of apricot tree. Twice en- 

 larged. (Original.) 



Fig. 372. — Gum globules formed over the entrances of burrows 

 made by the Western twig borer, Amphicerus punctipennis Lee. 

 Twice enlarged. (Original.) 



