Identification Family represented by just two unmistakeable species in Victoria. Both characteristically inhabit still water pools along the edge of fast flowing streams. These damselflies perch with wings held flat and look more like dragonflies, with robust bodies, rather than the thin-bodies that other damselflies have.

The nearest confusion species are the 'blue' dragonflies of Victoria: Orthetrum caledonicum, Austrothemis nigrescens and Crocothemis nigrifrons. None of these species however are noted for occurring on rocks in fast flowing rivers.