I think the moth's markings are a close match to S. sphenophora as seen on the Atlas of Living Australia which Donald Hobern has recorded at Aranda in 2015. See: https://bie.ala.org.au/species/urn:lsid:biodiversity.org.au:afd.taxon:043325cb-e0a9-4ed2-85ab-d00304b37a1d