SUPPLEMENTARY LIST. 189 



should go to nourish and mature it. It is a small leaf-hopper 

 (shown in Fig. 202), about one-fifth of an inch long, 

 of a dark-brown or black color, with a sulphur- ^i^- 202. 

 yellow spot like a saddle upon the middle of its back, 

 and in front of this a band of pale yellow, — the head 

 and under side being of the same color. It is un- 

 likely that this insect will ever occur in suflScient numbers to 

 cause much injury. 



SUPPLEMENTAEY LIST OP INJUEIOUS INSECTS WHICH 



AFPECT THE PLUM. 



ATTACKING THE ROOTS. 



The peach-tree borer, No. 97, sometimes invades the plum- 

 tree, and burrows about the collar and into the larger roots 

 adjacent without causing an exudation of gum, as in the 

 peach. Young trees are most liable to injury. 



ATTACKING THE TRUNK. 



The flat-headed apple-tree borer, No. 3, frequently attacks 

 the plum and materially injures the tree. 



ATTACKING THE LIMBS AND BRANCHES. 



The parallel Elaphidion, No. 12; the pear-blight beetle. 

 No. 68 ; the New York weevil, No. 100 ; and the tree- 

 cricket, No. 178. 



ATTACKING THE LEAVES. 



The apple-tree tent-caterpillar. No. 20 ; the forest tent- 

 caterpillar, No. 21 ; the white-marked tussock-moth. No. 22 ; 

 the canker-worms, Nos. 25 and 26; the fall web-worm. No. 

 27 ; the Cecropia emperor moth, No. 28 ; the unicorn promi- 

 nent, No. 29 ; the blind-eyed sphinx. No. 31 ; the oblique- 

 banded leaf-roller. No. 35 ; the leaf-crumpler. No. 37 ; the 

 eye-spotted bud- moth, No. 38 ; the tarnished plant-bug. No. 



