Sorry Joe. I have gone through my books and it is not a Notodontid known from Thailand, and the Noctuidae are only partially covered. I have also tried online resources from nearby areas and can not find it. It is not uncommon to photograph an unidentified species here, there are still many 'new to Thailand' species to be found in all families except the Hawkmoths (Sphingidae) and Silkmoths (Saturnidae).