TABLE OF CONTEXTS. 



Introduction : 5 



Acknowledgments 8 



Economic Importance of the Cicadellid^ 10 



Life History 22 



Natural Enemies 26 



Geographical Distribution 50 



Systematic Position of the Cicadellid^ 33 



The Chief Morphological Features 40 



The Male Genitalia 44 



Recognition of the Cicadellid^ 53 



Systematic Treatment of the Kansas Species .54 



Index 297 



