EXPERIMENT STATION BULLETINS. 



379 



CsC.^am 



Plate I.— Fig. 1, Cicadula 4-lineata; 2, Empoasca mali; 3, Platymetopius acutus; 4, Athysanus 

 instabilis n. sp.; a, front view of the head showing cyplens, lora, cheeks and front; 5, Megamelus piceus 

 M. 8p.; a, complete wing of macropterous form. All drawn ten times the natural size. 



