Maybe it is Labdia sp. ANIC5 ? https://bold-au.hobern.net/specimens.php?taxid=372815 Labdia argophracta, I realise now, has a longer white stripe along the inner margin. https://bold-au.hobern.net/specimens.php?taxid=372900 Sorry about delay with this. I wrote it before your comments but my internet went off-line due to heat, until late tonight.
I see the first image showing the specimen side-on matching other side-on shots of E. flammua on iNaturalist, but not of L. argophracta. I do not think the examples on Bold Hobern are a close match to this specimen https://bold-au.hobern.net/specimens.php?taxid=372900 I can see though that Labdia oxysema may be a likely candidate https://bie.ala.org.au/species/https://biodiversity.org.au/afd/taxa/8fb405d8-b7bb-41be-9f77-c921fcdbd0b3#gallery