Systema Dipterorum

Systema Dipterorum contains an estimated 99% of all names in Diptera and has two main components: (1) the Nomenclator, which allows users to check names and find the status (valid or invalid) and correct (valid) name for each nominal dipteran taxon as well as basic information on typification, family classification and range; and (2) the References database, which allows users to track the source work for any particular record. More than 160,000 extant and 4,500 extinct species of Diptera have been described and classified under some 250,000 names. Documentation on Systema Dipterorum, its sources, standards, and structure, is provided online.