A B ^~C D 



Fig. 6i. Dorsal wax gland of rosette aphid, second generation. 

 A & B, a pair on head. C & D, a pair on prothorax. Notice that the 

 sections are not uniform in number as is often the case. 



Figs. 62 and 63. Woolly Aphid. Winged and wingless forms. 

 Greatly enlarged. (After Marlatt.) 



Figs. 64 and 65. Mature sexual individuals of the Woohy 

 Aphid, — the oviparous female and male. Real size shown 

 in circles at right of figures. (After Alwood.) 



Fig. 66. Apple root, showing knotty growth caused by Woolly Aphid. 



