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ORDINARY MONTHLY MEETING. 



June 28th, 1911. 



Mr. W. W. Froggatt, F.L.S., President, in the Cliair. 



Mr. Sydney W. Jackson, Chatswood; Mr. John Shirley, B.Sc, 

 Brisbane; Miss Florence Sulman, Lawson; Dr. F. Watson, 143 

 Macquarie Street; Mr. C. H. Wilke, Darling Point, were elected 

 Ordinary Members. 



The President called the attention of Members to a circular 

 inviting subscriptions to tlie Anton Duln-n Memorial Fund, 

 forwarded by Professor Haswell, Local Hon. Secretary and 

 Treasurer for Austi'alia. 



The Donations and Exclianges received since the previous 

 Monthly Meeting (3 1st May, 1911;, amounting to 2 Vols., 

 62 Parts or Nos., 5 Bulletins, 3 Reports, and 6 Pamphlets, 

 received from 39 Societies, ikc, and 2 Individuals, were laid 

 upon the table. 



notes and E.XHIBITS. 



Mr. Gurney exhibited a complete series of specimens illus- 

 trating the life-history of an indigenous Braconid wasp (Opiiis 

 try out Cameron), a parasite of the Queensland Fruit-fly 

 (^Dacus tryoni) — the first parasite of fruit-flies recorded from 

 Australia. He showed also a specimen of the wasp bred from 

 one of two larvae of the introduced Mediterranean Fruit-fly 

 ((keratitis r(ipitata) in a peach — the first and only case of this 

 association which had come under his notice. The Queens- 

 land fruit-fly is known to attack four kinds of native fruits, 

 and is now taking to Citrus-fruits. The wasp has only a 

 fluctuating value in checking its natural host at present; but 



