Mariposa.

After trudging round the supermarkets I hadn't energy left to go blip-hunting in the hot sun. Luckily this chap was perched on top of one of the bags. No idea how it got there, but it stood still nicely posing for me before opening huge wings and flying away. As I'm totally ignorant of names of all plants and insect species, I'm relying on a kind blipper to tell me what this is. It was about palm-sized (although i have small hands).