THE FULGORIDAE OR PLANT-HOPPERS OF 



MISSISSIPPI, INCLUDING THOSE OF 



POSSIBLE OCCURRENCE 



A TAXONOMIC, BIOLOGICAL, ECOLOGICAL 

 AND ECONOMIC STUDY 



DISSERTATION 



PRESENTED IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR 

 THE DEGREE OF DOCTOR OF PHILOSOPHY IN THE GRAD- 

 UATE SCHOOL OF THE OHIO STATE UNIVERSITY 



BY 



HERBERT LAWRENCE DOZIER, B. S., M. S. 



THE OHIO STATE UNIVERSITY 

 1922 



