Bit suspicious of hook from forewing base to hindmargin, incomplete submarginal arc, and absence of diagonal hook from submarginal arc to hindmargin. Given that Common found 464 species and BOLD has found 345 Philobota species, it seems safer in this case maybe to say 'Philobota sp near arabella'.
I caught this species at Goorooyaroo and it matched a few ANIC ACT specimens placed near our common "Philobota sp near arabella", but apparently different