I'm suggesting H. ophiodes because of this moth's similarity with illustration of the female of this species on the supporting disc for Moths of Victoria Part 2 and the second image for the species on LBH. The male of the species is less distinct, greyer and more diffuse than the more distinct , higher contrating markings of the female. H. ophiodes seems to be more rounded in overall outline compares with the similar but more angular H. coryphoea. The female appears to have a white head andcontrasting black palps. See also this record of the species at Queanbeyan:- https://www.inaturalist.org/observations/4449437