Flystidae

Flystidae is a taxonomic name that has appeared in some classifications as the designation of a family within the order Diptera. It is not, however, universally recognized as a valid or current family in contemporary fly taxonomy. In major catalogs and databases, Flystidae is not listed as a standing taxon, and its application remains uncertain.

The uncertain status of Flystidae stems from several factors, including a lack of a clear, published diagnosis and the absence of a well-defined type genus. Because of these gaps, the name has been treated in some sources as a nomen dubium or as a possible junior synonym of another family, though there is no broad consensus among taxonomists.

As a result, no genera are broadly placed in Flystidae within accepted classification schemes, and the name does not influence modern Dipteran taxonomy. If a formal revision were published with explicit diagnostic criteria, a designated type, and a clear justification within the rules of zoological nomenclature, its status could be clarified or overturned.

In the absence of such a revision, Flystidae remains largely a historical or provisional label encountered in limited or outdated literature. Researchers seeking stable classifications are advised to rely on established families and to treat Flystidae as an uncertain or obsolete name until further evidence and formal publication provide clarity.