Amata nigriceps (female, I think) - based on markings on abdomen and markings on hind- & forewings. https://inaturalist.ala.org.au/observations?place_id=6744&preferred_place_id=6744&quality_grade=research&taxon_id=210312
Amata nigriceps (male) - based on markings on abdomen and markings on hind- & forewings. https://inaturalist.ala.org.au/observations?place_id=6744&preferred_place_id=6744&quality_grade=research&taxon_id=210312
This is probably a Geometrinae larva but probably not Crypsiphona ocultaria which has a pink&yellow line from top to 'tail' down each side at the edge of a slightly 'quilted' flap. They also tend to be a more bluey green. (Except 1st instar which this is not.) http://lepidoptera.butterflyhouse.com.au/geom/ocultaria.html https://inaturalist.ala.org.au/observations?place_id=6744&q=larva&quality_grade=research&taxon_id=342140