Male and female Tussock Moth possibilities:
Euproctis melanosoma,
Acyphas chinotis,
Nygmia edwardsii,
Orvasca
Yellow on tip of abdomen, front legs, base of costa.
The yellow markings at the base of the costa and on the legs suggest Orvasca (genus) as described by Moths of Victoria yet Orvasca (genus) is described as a synonym of Euproctis (genus) by the ALA which cites the Australian Faunal Directory.