Badisis

Badisis is a stilt-legged fly genus with only one known species, Badisis ambulans. This is a wingless, haltere-less fly with an ant-like appearance. It is only found in the Southwest Australian bioregion of Western Australia. Dependent on the rare Albany pitcher plant (Cephalotus follicularis) for its development, this fly is also a rare species.

Despite its many apomorphic features, the details of its morphology suggest a close relationship to the diverse genus Metopochetus, which is also in the tribe Metopochetini. The fossil stilt-legged fly Electrobata tertiaria from Baltic amber of the Paleogene also shows some similarities; it may be a very basal member of the Metopochetini, close to the divergence between these and the Eurybatinae.