85 



T)i-. Back siatc(I duit an iiii|)(iilaiit factor ro coiisidci' in tlic 

 conti'ol of the melon t'lv hv spraviiiii,-, is ilie lateness at wliicli 

 sexual matnrity is reached; niatiiii>' not takini;' ])]ace nntil at 

 least three weeks after issuance from the i)tipa, and ovijxtsition 

 not conmiencini;' nntil about a month after issnance. He also 

 stated that one great ditficnhy in the effective^ elimination of 

 this tiv in an infested region is the longevity of the adults, many 

 then being alive at the Fruitfly Insectary which were nearly 

 seven months old. 



^Ir. Ehrhorn announced the recovery of two females and 

 six males of the Australian fruitfly Braconid (Di((rhasiji(( fn/- 

 oni) from infested coffee secured from Kona, Hawaii. This is 

 the first record of the success of the introduction of this s])e- 

 cies. which has resulted from the liberation of only four females 

 in Kona in June. lOl-"). 



OCTOBEPt St II, lOU. 



The postponed one hundred-tenth regular meeting of the 

 Society was held in the usual place, President Swezey in the 

 chair. Other members present: Messrs. Ehrhorn, Tllingworth, 

 Osborn and Pemberton. 



^linutes of previous meeting read, corrected and a])proved. 



The Editor re]-»orted the issuance of the first nund)er of the 

 third volume of the '■Proceedings of the TTawaiian Entonioloo-- 

 ical Society". 



KXTOMOLOOICAL PKOOKAM. 



Mv. Ehrhorn stated that he had ascertained since the last 

 meetinu of the Society, that' the samples of infested coffee from 

 which he had bred Diachastna tryoni. as reported at that meet- 

 ing, were secnred at Kaanaloa, a point abont six miles from the 

 place where the original parasites were liberated last Tune. 



Prof. IllingAvorth stated that he had recently seen the ant, 

 PheidoJe mefiacephnla, excavate into three inches of soil and kill 

 ])upae of Sphinx conroJnili ; and that he had also observed the 

 same ant follow and kill the burrowing cockroach, Xauphorfn 

 hintfdta, and another roach, Leucophora siiriiHuiicnsis. as rhev 

 l)ni'rowed in moist soil. 



Prof. Illingworth exhibited a living, active Dcrmestid larva 



