Parasites of the larvae of the eucalypt-defoliating beetle Paropsis atomaria Ol. observed from 1975 to 1977 included the hymenopteran primary parasitoid Eadya paropsidis Huddleston & Short, the secondary (hyper) parasitoids Perilampus tasmanicus Cameron, and Mesochorus sp., and the tachinid flies Froggattimyia anguliventris Mall., Froggattimyia tillyardi Mall. and Paropsivora sp. For the December-January first generation of Paropsis larvae in the 1976-77 season, Eadya achieved an average 49% (range 12-93%) parasitization, and the flies 19% (range 2-54%); the two parasitoids occurred together in 18% (range 4-29%) of parasitized larvae. Perilampus planidia attacked on average 68% (range 33-100%) of tachinid larvae and 70% (range 56-94%) of Eadya larvae. Parasites diseases and disorders; Parasites; Insect parasites; Hosts; Insect hosts; Host parasite relationships; Land and freshwater zones; Australasian region; Australia Paropsis atomaria (Chrysomelinae); Dipteran parasites; Froggattimyia & Paropsivora; Prevalence & hymenopteran hyperparasites; Hymenopteran parasites; Eadya; Mesochorus & Perilampus; Prevalence as primary & secondary parasites; Hyperparasitism; Hymenopteran hyperparasites in Diptera & Hymenoptera; Australia; Prevalence; Dipteran & hymenopteran parasites; Australian Capital Territory; Canberra; Prevalence of dipteran & hymenopteran parasites Froggattimyia anguliventris; Froggattimyia tillyardi; Paropsivora (Tachinidae ); Hymenopteran parasites; Mesochorus & Perilampus tasmanicus; Prevalence as hyperparasites in coleopteran hosts; Coleopteran hosts; Paropsis atomaria; Prevalence & hymenopteran hyperparasites; Hyperparasitism; Hymenopteran hyperparasites in coleopteran hosts; Prevalence; Coleopteran hosts with hymenopteran hyperparasites; Australia; Australian Capital Territory; Canberra; Prevalence in coleopteran hosts, hymenopteran hyperparasites Mesochorus (Ichneumonidae); Coleopteran hosts; Paropsis atomaria; Prevalence as hyperparasites in Eadya paropsidis & Diptera; Dipteran hosts; Froggattimyia & Paropsivora; Prevalence as hyperparasites in Coleoptera; Hyperparasitism; Eadya paropsidis & dipteran hosts in Coleoptera; Prevalence; Australia; Australian Capital Territory; Canberra; Hyperparasites of Eadya paropsidis & Diptera in Coleoptera Perilampus tasmanicus (Perilampidae); Coleopteran hosts; Paropsis atomaria; Prevalence as hyperparasites in Eadya paropsidis & Diptera; Dipteran hosts; Froggattimyia & Paropsivora; Hymenopteran hosts; Eadya paropsidis; Prevalence as hyperparasites in Coleoptera; Hyperparasitism; Eadya paropsidis & dipteran hosts in Coleoptera; Prevalence; Australia; Australian Capital Territory; Canberra; Hyperparasites of Eadya paropsidis & Diptera in Coleoptera