The following statistics are based on version 8.5 of the BioSystematic Database of World Diptera. For the Oriental region this version contains a total of 24,950 species name records of which 21,559 (86%) represent valid species. 93% of the species are endemic to the Oriental region.

For statistics on other biogeographic regions click on the following links:
All Biotic Regions
Afrotropical Region
Australasian/Oceanian Region
Nearctic Region
Neotropical Region
Palaearctic Region

Source tables: valid species per family, valid species per year, name records per family, name records per year.