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Noctuid Moth Eudocima sp.BOLD Systems: Taxonomy Browser
Possibly a female Eudocima serpentifera (Walker). or an undescribed species similar species. Here is a recent publication about serpentifera.
http://independent.academia.edu/VernonAn...
Noctuidae, Catocalinae. Can't image another species than Eudocima, although yours is more whitish (old/worn?) than the other ones. But looking at the markings you would probably agree with Eudocima sp.