This moth was playing dead. I saw it flying round and landing on a small twig (photos 4 and 5), but when I bumped it while trying to get a better look, it dropped to the ground and remained immobile lying on its side. It didn't move when I disturbed the leaf it was lying on and even when I completely removed the leaf. Then, after about 3 minutes, the 'dead' moth just flew away. This was quite different from freezing in place which I often observe, and seems to be an example of thanatosis.