Here, all taxonomic groups down to families and subfamilies are fully diagnosed, and the latest literature discussing their status is reviewed and summarised. Full taxonomic information is provided for each species, listing the original literature as well as museum data on the original type specimens.

This volume covers the Australian representatives of the many dipteran families grouped under the suborder Nematocera. It catalogues 23 families, 44 subfamilies, 61 tribes, over 300 genera, 199 sub genera, some 24000 species and nearly 3000 species available names.