An adult male Zelothrix yeatesi. Photo by Shaun L. Winterton.

The first new genus is called Sidarena, which “is derived from the Greek Sideros, meaning iron, referring to the broad metallic-grey stripe typically present on the thorax; and arena, referring to its habit of landing in sandy patches.:

The other genus is called Zelothrix, which is derived from the Greek word Zelos, which means emulation, and thrix, which means hair, for the setal pile on the female abdomen.

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– New genera of Australian stiletto flies (Diptera, Therevidae)