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Division of Entomology 



Honolulu, Hawaii, April 30, 1919. 



Board of Commissioners of Agriculture and Forestry, 

 Honolulu, T. H. 



Gentlemen: — During the month of April the insectary handled 7500 

 pupae of the melon fly, from which were bred 495 females and 300 males, 

 Opius fletc'heri. 



The distribution of parasites was as follows: 



MELON FLY. 



Opkis fletcheri. 

 Oahu: 



Females. Males. 



Fort Kamehameha 100 100 



Nuuanu 40 30 



Wahiawa 20 20 



Kailua 270 240 



Hawaii: 



Kamuela 150 150 



FRUIT FLY PARASITES. 



Opius humilis. 



Oahu: 



Nuuanu 75 75 



Makiki 25 25 



Kalihi 25 25 



Hawaii : 



Kam.uela 145 130 



Hawi 170 150 



DiacJwsma tryoni. 



Oahu: 



Nuuanu 75 75 



Makiki 25 



Kalihi 25 25 



Hawaii: 



Kamuela 45 25 



Diacliasma fullaicayi. 

 Oahu : 



Nuuanu 85 75 



Tetrastichus gifardianus. 



Oahu: 



Nuuanu 700 



Makiki 200 



Kalihi 300 



Hawaii : 



Kamuela 550 



Dirhinus gifardi. 

 Oahu: 



Nuuanu 230 



