I don't think its Glyphipterix chrysoplanetis, white patches on fore wing are surrounded by black in mine, In G. crysoplanetis background colour is generally darker, white patches are bigger and are a somewhat different shape and not marked out in same way. Markings along leading edge of the wings are different. purple lines in these moths are much more compete and well in front of more apical white spot, which they are not in the species you suggest.
LBH says this species occure in Tasmania. iNaturalist has records frtom southern Victoria. This looks a good match to those sightings. A new record for NatureMapr's Canberra and Southern Tablelands region. Great photos.