The BioSystematic Database of World Diptera (BDWD) is a source of names and information about those names and the taxa to which they apply. The BDWD is a set of tools to aid users in finding information about flies. The two main components of the BDWD are the Nomenclator and the Species database.
The Diptera Web after 12 years is now officially closed.
Its functionality will be assumed by others shortly. Until that transition can be made, the link to the Biosystematic Database of World Diptera is left open.