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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 Eurybatini.〔 ==Description== Apart from its lack of wings and halteres, ''B. ambulans'' has a less unusual habitus than other members of the Micropezidae. Its body is stockier, with a petiolate abdomen (like in ants and other Apocrita), its middle and hind legs are less elongated, and its forelegs are less shortened than in its relatives. At a casual glance, it is easier to confuse with an ant than with other micropezid flies. The two sexes are almost identical; they can be told apart essentially just by microscopic study of the tip of the abdomen. The larva is adapted to its strange habitat, the pitchers of the Albany Pitcher Plant. In third-instar larvae (and likely in others too), the slits of the posterior spiracle are entirely closed.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Badisis」の詳細全文を読む
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