A taxonomic revision of the Australian Conopidae is presented. Nineteen genera in four subfamilies are recognised. The Stylogasterinae are represented by the cosmopolitan genus Stylogaster Macquart and the Myopinae by Myopa Fabricius and Thecophora Rondani. A monotypic genus, Notoconops gen. nov., is described and placed in a new subfamily, Notoconopinae. The remaining fifteen Australian genera are assigned to the Conopinae. Australoconops Camras, Chrysidiomyia Krober, Conops Linnaeus, Delkeskampomyia Krober, Heteroconops Krober, Microconops Krober, Neoconops Krober, Pleurocerina Macquart, Physocephala Schiner, Smartiomyia Krober and Stenoconops Krober are redescribed. Four new conopine genera are described: Atrichoparia; Camrasiconops; Setosiconops; and Tanyconops, with the following resultant new combinations: Atrichoparia curticornis (Krober) (from Heteroconops); Camrasiconops ater (Camras) and Ca. rufofemoris (Camras) (from Microconops); and Setosiconops robustus (Krober) (from Neoconops). Callosiconops Krober and Paraconops Krober are regarded as junior synonyms of Chrysidiomyia and Pleurocerina respectively with the following resultant new combinations: Chrysidiomyia hirsuta (Krober), Pleurocerina aristalis (Camras), P. longicornis (Krober), P. nigrifacies (Krober), P. similis (Krober), P. turneri (Camras). A total of 100 species of Australian Conopidae are now recognised. No new species of Myopinae or Stylogasterinae are described. Representative species only of Atrichoparia, Camrasiconops, Heteroconops and Microconops are described. All species of the other 12 genera are described or redescribed. These include the following 45 new species,: Australoconops aglaos, A. aurantius, A. balteus, A. breviplatus, A. brunneus, A. camrasi, A. cantrelli, A. elegans, A. fulvitarsus, A. furvus, A. nebrias, A. neuter, A. pallorivittus, A. phaeomeros, A. ruficrus, A. vespoides; Chrysidiomyia rugifrons, C. setosa; Conops aureolus, C. badius, C. chvalai, C. sparsus; Heteroconops carnarvonensis; Neoconops brevistylus, N. glaber; Notoconops alexanderi, Pleurocerina aquila, P. brevis, P. chrysopyga, P. lamellata, P. lutea, P. luteiceps, P. occidua, P. saxatilis, P. scutellata, P. vespiformis; Setosiconops epixanthus, Se. similis, Smartiomyia arena, Sm. cerina, Sm. danielsi, Sm. macalpinei; Tanyconops longicaudus, T. luteus, T. ocellatus. Australoconops ocellatus (de Meijere) comb. nov. is resurrected from synonymy with A. aurosus (Newman). Conops demeijerei Krober is considered a junior synonym of C. seminiger de Meijere. A lectotype and paralectotypes are designated for Microconops fasciatus Krober. Anatomical features used in descriptions are discussed and illustrated. Special attention has been given to the ultrastructure of spicules on female genital structures. These spicules show differences between genera and species. The high degree of endemism of the Australian fauna is discussed in relation to the world fauna and some preliminary thoughts on phylogenetic relationships are presented. A catalogue of the Australian Conopidae is included as an Appendix.
