PLANT LICE. 
1 
Fig. 1. 
SS. 
ae SN 
RNY 
S 
Fig, 3. 
Fic. 151—Melanoxanthus salicis Linn. 
aod antenna ofsame; Fig. 2, 
Fig. 1, a, oviparous female; 1, b, head 
a, winged male; 2, b, head and antenna ofsame; 
Fig. 3, a, egg, enlarged; 3, b, oviparous females and eggs on branch of willow; 
natural size. After Webster. 
~— 
( 
9 
