138 



INSECTS INJURIOUS TO STAPLE CROPS. 



'■-' "■'■':>liiSi 



Fig. 74.— The Corn ^o<di2i\s\\\'& {Aphis inaidiT(idiiis Forbes); Ovip- 

 arous female, n, hiud tibia, showing sensoria. (After Forbes.) 



Fig. 75. — The Corn Root aphis; male, a, antenna?. (After Forbes.) 



