[4][5] This is an Australian endemic and one of the rarest dragonflies in the country.

It breeds in rivers and streams in coastal areas of Queensland and New South Wales.

[6] Nymphs of this species grow to 23 mm in length and live among rocks and detritus along stream margins.

They can be identified by the distinctive two-lobed frontal plate on the head.

The adult is a fairly large and robust dragonfly, blackish brown with narrow yellow rings.