UNITED STATES DEPARTMENT OF AGRICULTURE 

 BULLETIN No. 491 



Contribution from Bureau of Entomology 

 L. O. HOWARD, Chief 



Washington, D. C. 



PROFESSIONAL PAPER 



June 30, 1917 



THE MELON FLY IN HAWAII 



By 



E. A. BACK, Entomologist, and C. E. PEMBERTON, 



Scientific Assistant, Mediterranean and other 



Fruit Fly Investigations 



CONTENTS 



Introduction 1 



Origin 2 



Distribution 3 



Source of Hawaiian Infestation .... 4 



Early History in Hawaii 4 



Literature - 5 



Economic Importance . . . 7 



Injury „. 8 



Food Plants 12 



Life History and Habits 18 



Length of Life Cycle 43 



Seasonal History 44 



Method of Spread ......... 44 



Control Measures 45 



Summary 55 



Bibliography 57 



WASHINGTON 

 GOVERNMENT PRINTING OFFICE 



1917 



