I think I can see pectinate antennae, what do others think? If so, it's likely to be Didymoctenia exsuperata (supported by the brown base colour). Psilosticha all have linear antennae.
I have now had a close look at this specimen under magnification in Photoshop. There are no pectinations visible at the base of the antennae- but on either side the front legs are visible behind which tends to suggest pectinations when looking at lower maginification. Therfore, that rules out a male Didymoctenia. I don't think the hindwing pattern matches the specimens of either male or female D. exsuperata I can see online. I suggest reverting to Psiltocha absorpta pending a better suggestion.