Not S. liotis I think because lacks the two dots on the forewing and has 'somwhat of a 'point on the hindwing margin Ășnlike the rounded hindwing margin of that species. P. perlata and S. sp. 3 to me seem to me to more sharply angular in shape with a more pronounced 'points on the hindwing margin than this specimen so I'm not sure it matches those either.