89 

 The Trunk, Branches and Twigs — 



(a) A snout beetle gnawing the twigs and fruit — Imbricated Snout Beetle 

 (Epicaerus imbricatus). 



(b) A small beetle boring in the branches just above a bud, and burrowing 

 downwards — Apple Twig Borer (Amphicerus bicaudatus). 



(c) A flattened grub tunneling in the bark and sap-wood; beetle bronzy 

 metallic— Divaricated Buprestis (Dicerca divaricata). 



(d) Large sucking insect with transparent wings inflicting wounds on the 

 smaller limbs, and depositing eggs therein in August and September — Dog-Day 

 Cicada (Cicada tibicen). 



(e) Small circular scales, black in winter, with a circular depression about a 

 central nipple — San Jose Scale (Aspidiotus perniciosus). 



The Leaves — 



(a) A small beetle feeding on the leaves of red cherry — Cherry-Leaf Beetle 

 (Galerucella clavicollis) . 



(b) A slug, shiny, dark green, one-half inch long, feeding on soft tissues, 

 leaving the veins — Pear or Cherry Slug (Eriocampa cerasi). 



(c) Shining black plant lice infesting the terminal twigs chiefly, which be- 

 come distorted and discolored — Cherry Aphis (Myzus cerasi). 



(d) Large, bluish green caterpillar, two inches long with blue warts on each 

 segment, and coral red ones on the third and fourth segments — Promethea Moth 



(Callosamia promethea). 



(e) Large pale green spiny caterpillar, striped on each side with white and 

 lilac — lo Moth (Hyperchiria lo). 



(f ) Caterpillars in colonies protected by webs in forks of branches in spring — 

 American Tent Caterpillar (Clisiocampa Americana) and Forest Tent Cater- 

 pillar (not in webs). 



(g) Caterpillars in colonies protected by webs covering the leaves in sum- 

 mer and early autumn — Fall Web Worm (Hyphantria cunea), and other insects, 

 most of which also attack the leaves of apple. 



