Taylor, G.Austin, A.Davies, K.2007-05-112007-05-111996Transactions of the Royal Society of South Australia, 1996; 120(4):131-1460372-1426http://hdl.handle.net/2440/27930Galls initiated by the association of Fergusonina flavicornis Malloch (Insecta: Diptera: Fergusoninidae) and Fergusobia sp. (Nematoda: Sphaerulariidae) on Eucalyptus camaldulensis Dehnh. at Goolwa, South Australia were monitored during a single, late summer generation for emergence of flies and associated Hymenoptera. The morphology of the galls is described for the first time. A total of 12 hymenopteran species was reared from galls, twice the number previously recorded from Fergusonina/Fergusobia galls. There was a strong positive correlation between emergence of flies, combined totals of flies and wasps and gall size. Bracon fergusoninus sp. nov., a probable primary parasitoid of F. flavicornis larvae, is described. Notes on the biology and taxonomy of each hymenopteran species are presented along with an illustrated key to their identification.enEucalyptusgall-formingFergusoninaDipteraFergusoninidaeparasitic HymenopteraBraconidaeBraconFergusobiaNematodaSphaerulariidaeJournal article003000255166557Taylor, G. [0000-0002-4082-5459]