Based on likelihood this is certainly Utethesia sp. most probably U. pulchelloides but it could also be the less likely U. lotrix. They are very close to each other and differr only by the presence or absence of a spot on the forewing which I can't really check from these photos. Do you perhaps have a closer up image of the moth, i.e . as for the second image?
I've added a cropped version of the photo to help. I had a look at the identification tips and the moth has five spots on the forewing; the extra spot is visible.