84 



a year had elapsed since the females were liberated. ]Mr. Ehr- 

 liorn also stated that he had observed Opiti.'^ InimiUs ovipositing' 

 in frnitfly maggots in fruit, not only on the tree, bnt after it 

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

 larvae may be killed by the heat of the sun, when in certain 

 frnits. after the frnit has fallen to the gronnd. lie had fonnd 

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

 direct snnlight and which was mnch heated, were dead. 



Prof. Illingworth spoke of the great importance, in parasite 

 breeding, of confining the parasites for a snfficient length of time 

 to assTu-e mating before liberation; basing his arguments upon 

 practical experience gained in the breeding and libertion of 

 Tacliinids in Fiji. 



SEPTEMBER 3rd, 1914. 



The line lunidred-ninth regular meeting of the Society was 

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

 members present: Messrs. Back, Ehrhoru, Illingworth, Osborn 

 and Peinberton. 



]\rinutes of previous meeting read and approved. 



exto:mological program. 



.Mr. Swezey exhibited a specimen of the mango weevil 

 (Crijpturhynchus nuuHjlferae) taken by Mr. C. M. Cooke at Li- 

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

 beetle on that Island. 



Mr. Swezey also exhibited two species of earwigs found in a 

 box of a})ples from California ; a small beetle found in a basket 

 of ])]ums from California ; and an ant, determined by Mr. Ehr- 

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

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

 Hawaiian Islands. 



I'rof. Illingworth, in reporting results of spraying experi- 

 ments against the melon fly, stated that a sju-ay-formnla used 

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

 and borax used in certain proj^ortions, was found to be injurious 

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

 wheu ])i-o]ierly combined proved a good substance for retaining 

 its original liquid condition. It showed no decided tendency 

 lidwcver of attractinc; the adult flies. 



I 



