Papuapterote styx is a moth in the family Eupterotidae.

The forewings are dark umber brown, with a very obscure trace of three or four darker bands across the centre of the wings and a subterminal slightly curved, dull ochreous darkly edged line.

From here, there is a broad dark grey area with a scalloped external margin.

The hindwings are paler brown, with three or four obscure darker lines across the median area: a pale, darkly edged postmedian line, followed by a broad dark grey band with a scalloped external margin.

This article relating to the superfamily Bombycoidea is a stub.