71 



oreliid basket^^. The iiiai>'gots were feedinii- on the partially cle- 

 cavecl meat of the sprouting coconiit. They were blnisli in color 

 and of the general form of frnitfly maggots. The habits of the 

 fly had not previonsly been known, tho specimens had been 

 taken now and then on windows by several of the entomologists 

 in ITonolnln. The first specimen was secured by Mr. Terry in 

 1904 at the entomological laboratory of the Board of Agricnl- 

 tnre and Forestry. 



Mr. Swezey further exhibited a single specimen of a Chrysi- 

 did which w^as recently caught by Mr. Potter in his studio on the 

 second floor of the chemical laboratory at the Experiment Sta- 

 tion of the Sugar Planters' Association. This is the first record 

 of a Chrysidid caught in the Hawaiian Islands, and must be a 

 recent introduction. 



Prof. Illingworth exhibited two specimens of the Rcduviid 

 bug, Triatoma ruhrofasciata, captured in Honolulu. 



Some Hyperparasites of White Grubs. 



BY OTTO 11. SWEZKY. 



In May, 1914, 5G cocoons of Elis sexc'inda were received 

 from Mr. George X. Wolcott. He had collected these at ITr- 

 bana, Illinois, while collecting cocoons of Tiphia to send to Por- 

 to Rico. ]Srot desiring to make use of the EUs cocoons, he for- 

 warded them to the Experiment Station, where we expected to 

 experiment with this species as a parasite on the grubs of Ano- 

 mala and Adoretus. There were not many emergences from the 

 lot and they were mostly males ; only one female emreged. She 

 lived for several weeks but failed to parasitize any of the grubs 

 that were supplied her in the cage. 



From this lot of cocoons one male and one female ^lutilid 

 emerged, and one Bombyliid. Careful examination showed 

 that with each of them they had been parasitic on the Elis. and 

 thus were hyperparasites of some white gTub — presnmal)ly some 

 species of Lacliiiosterna. 



The Bombyliid was Aiifhrd.r fiilrolilitn Wied. I have not 

 seen any reference in literature to its host relationships. In Dr. 

 Forbes' 24th Illinois Report, 1908, on page 160, a Bombyliid 

 (Exoprosopa fasc'ipennis Say) is mentioned as a parasite on 

 ,Tiphia, and is thus also a hyperparasite on wdiite grubs. On 

 ])a!i'e 101 of the same Report, another Bombyliid {SpnrnopoJliis 

 f 111 r IIS Wied.) is mentioned as a direct parasite on white grubs. 



