The braconid wasp genus Diolcogaster Ashmead is revised for the Australasian region, and is recorded from New Zealand and New Caledonia for the first time. A key to species is presented, the relationships within the Microgastrinae and among species-groups of the genus, the size of the world fauna, the biology and host relationships, and the distribution of Australasian species are discussed. The connexus-group sensu Nixon is expanded and redefined to include two monotypic, non-Australasian groups (D. ippis Nixon and D. reales Nixon), while the spretus-group sensu Nixon is expanded to include the monotypic group for D. coenonymphae (Watanabe) from Japan. Twenty-six species are recognised from Australasia:D. adiastola, sp. nov., D. alkingara, sp. nov., D. ashmeadi, sp. nov., D. dichromus, sp. nov., D. eclectes (Nixon), D. euterpus (Nixon), D. hadrommatus, sp. nov., D. harrisi, sp. nov., D. iqbali, sp. nov., D. lucindae, sp. nov., D. masoni, sp. nov., D. merata, sp. nov., D. muzaffari, sp. nov., D. naumanni, sp. nov., D. newguineaensis, sp. nov., D. nixoni, sp. nov., D. notopecktos, sp. nov., D. perniciosus(Wilkinson), D. rixosus (Wilkinson), D. robertsi, sp. nov., D. sons (Wilkinson), D. tearae (Wilkinson), D. tropicalus, sp. nov., D. vulpinus (Wilkinson), D. walkerae, sp. nov. and D. yousufi, sp. nov.

To collect the parasitic fauna of Hymenoptera, from Okara district, Malaise traps and net sweepings were used. The specimens were identified up to subfamily level. This study yield eight subfamilies, i.e., Agathidinae, Alysiinae, Braconinae, Cardiochilinae, Doryctinae, Microgastrinae, Opiinae and Rogadinae of Braconidae from the area of study. Out of these, seven (except Microgastrinae) were new records from Pakistan. An illustrated key to the subfamilies is presented for easy future identifications. The economic importance of each subfamily was discussed briefly.

To collect the parasitic fauna of Hymenoptera, from Kasur district, Malaise traps and net sweeping were used. During this endeavor, members of Superfamily Chrysidoidea, the parasitoids of wood boring coleopterous larvae are collected and identified from the region. The identifications are made up to subfamily level. This superfamily consists of two most commonly met families, i.e., Bethylidae and Dryinidae from this area. Subfamilies Epyrinae and Dryininae are identified in the above mentioned families, respectively. An illustrated key to the families is provided. Important taxonomic characters and economic importance of each subfamily is discussed briefly. This is the first ever record of chrysidoid parasitoids from Pakistan.