Southern Giant Darner

The genus name Austrophlebia combines austro- (Latin auster, “southern”) with -phlebia, from Greek φλέψ (phleps, “vein”), reflecting its relationship to Telephlebia and Austroaeschna. The species name costalis is derived from the Latin costa ("rib") and the suffix -alis ("pertaining to"), referring to the distinctive russet-brown colouring alongside the costa, the leading longitudinal vein of the wing.