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Field, Scott A. Dept. of Crop Protection 1997 http://hdl.handle.net/2440/18936 Bibliography: leaves 175-191. xx, 191 leaves : ill. ; 30 cm. Trissolcus basalis (Wollaston) is a solitary endoparasitoid of the eggs of many pentatomid bugs. It is a quasi-gregarious scelenoid and aggressively defends host patches. In the Adelaide (S. Aust.) region its most abundant host is the native horehound bug, Agonoscelis rutila (Fabricius). This study of patch defence draws together important areas of research in parasitoid behavioural ecology, including the theories of adaptive superparasitism, sex ratio decisions, foraging behaviour and contest resolution. Thesis (Ph.D.)--University of Adelaide, Dept. of Crop Protection, 1997 111413 bytes application/pdf en Trissolcus. Scelionidae. Pentatomidae Biological control. Parasitoids Ecology. Patch exploitation and defence in the egg parasitoid Trissolcus basalis Wollaston (Hymenoptera : Scelionidae) / Scott A. Field. Thesis This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exception. If you are the author of this thesis and do not wish it to be made publicly available or If you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legalsopen.access