Not sure I can see the two-coloured costal edge which is characteristic of P. bicosta. See page 224 of 'Moths in the ACT' (Cocking et al 2022) which has a photo of Paleosis (genus) and also SIghting No. 4424222.
I certainly didn’t notice a two toned edge with the naked eye either, but it does seem quite subtle in some images. I think the lack of a yellow blotch on the thorax precludes Brunia replans. Sighting 4424222 looks like a good match