FIG. 172. Three cotton leaf-hoppers, commonly called "sharpshooters." 

 (Much enlarged) 



a, Aulacizes irrorata ; b, Oncomctopia undata ; c, Oncometopia lateralis. (Authors' illustra- 

 tion, United States Department of Agriculture) 



FIG. 173. Grape leaf-hoppers. (Much enlarged) 



a and b are female and male of typical comes variety ; c represents the vitis variety ; d, newly 



hatched nymph ; e, last stage nymph ; /, injured leaf ; g, cast skins. (After Marlatt, United 



States Department of Agriculture) 



126 



