84 



a year had elai)sed sinee tlie females were liberated. ^Fr. Elir- 

 horii also stated that he had observed Opius humilis ovipositing 

 in frnitfly maggots in frnit, not only on the tree, but after it 

 had fallen to the gromid. He expressed the opinion that frnitfly 

 larvae may be killed l)y the heat of the sun, when in certain 

 frnits, after the frnit has fallen to the ground. He had found 

 that all of the maggots in a mango, which was lying in the 

 direct sunlight and which was much heated, were dead. 



Prof. Illingworth spoke of the. great importance, in parasite 

 breeding, of confining thei^arasites for a sufficient length of time 

 to assure mating before liberation; basing his arguments upon 

 practical experience gained in the breeding and libertion of 

 Tachinids in Fiji. 



SEPTEMBER :3kd, 1914. 



Tlie one hundred-ninth regular meeting of the Society was 

 held in the usual place, President Swezey in the chair. Other 

 meml>ers present: Messrs. Back, Ehrhorn, Illingworth, Osl)orn 

 and Pemberton. 



]\Iinutes of previous meeting read and apju'oved. 



ENTOMOLOGICAL rROGRA^L 



]\lr. Swezey exhibited a specimen of the mango weevil 

 (CryptorJiynchus niangiferae) taken by Mr. C. M. Cooke at Li- 

 hue, Kauai, this being the first record of the presence of this 

 l)eet]c on that Island. 



^Ir. Swezey also exhibited two species of earwigs found in a 

 box of apples from California ; a small beetle found in a basket 

 of plums from California ; and an ant, determined by ]\[r. Ehr- 

 horn as Brachymyrmex sp., taken by Dr. Lyon in his orchid 

 house. All of these were of species not hitherto recorded in the 

 Hawaiian Islands. 



PiYjf. Illingworth, in rei)ortiug results of spraying experi- 

 ments against the melon fly, stated that a spray-formula used 

 elsewhere, composed of sodium arsenite, glucose, sodium borate, 

 and borax used in certain proportions, was found to be injurious 

 to young plants attacked by the melon fly. The spray solution 

 when properly combined proved a good substance for retaining 

 its original liquid condition. It showed no decided tendency 

 however of attracting the adult flies. 



