A black wedge-shaped beetle about 15 mm long with white specks on elytra and dramatically flabellate antennae. Legs were a deep brown with black colouring at the femoral and tibial joint. A slightly humped scutellum and head were also black.
Spotted on a young eucalyptus tree in a small reserve.
The larvae are ecto-and endoparasitic on other insect larvae, possibly of cicada.
Commonly called feather-horned beetle.