I don't think this is Eulechria triferella. It lacks the while patch surrounded by spots in from the termen. All the BOLD (Hobern) and iNat (research grade) images have this. Ardozyga tetraploa is very similar but has the white fringe and no white patch in from the termen. https://bold-au.hobern.net/specimens.php?taxid=369395 https://inaturalist.ala.org.au/observations?place_id=6744&preferred_place_id=6744&quality_grade=research&taxon_id=1195275
OK, agreed, well spotted Wendy, you would know it better than us because i see it is described as 'a Victorian species!' - although i see there are coastal southern NSW records: Mongarlowe NSW is on the escarpment so it might be reagarded as fitting that 'coasta;' distribution, The white trailing fringe to the forewing would appaer to be a good indicator it's this species. A new species sighting for NatureMapr Canberra and the Southern Tablemands. Nice photo.