1) Acosmeryx anceus subdentata (Dark form), from Chiang Dao Wildlife Sanctuary (c.500m). (Posted before, but reshown to compare with No.2, below)
2) Acosmeryx omissa ????. This was taken at Doi Pha Hom Pok (c.1600m.). The forewing looks more crenulated, hence the suggested id, I would like others opinion on this one. Sorry, the lighting was not advantageous.