TO THE MEMORY OF THE LATE 

 PHILIP EEESE UHLER 



IN SINCERE APPRECIATION OF HIS UNREMITTING AND DIS- 

 INTERESTED LABOR IN ELUCIDATING AND PLACING ON A 

 FIRMER FOUNDATION THE STUDY OF NORTH AMERICAN 

 HEMIPTEROLOGY AND OF HIS UNFAILING KINDNESS AND 

 READY ASSISTANCE EXTENDED TO THE AUTHOR DURING 

 THE EARLY YEARS OF HIS STUDIES OF THESE INSECTS, 

 THIS WORK IS MOST RESPECTFULLY DEDICATED. 



