Bui. 1 9, U. S. Dept. of Agriculture. 
Plate I. 
The Grape Leafhopper. 
The five nymphal stages and adult of the grape leafhopper ( Typhlocyba comes): a, First stage; 
b, second stage; c, third stage; d, fourth stage; e, fifth stage; /,' adult with wings spread. All 
greatly enlarged. (Original.) 
