Sighted in West London, July 23rd., 2022. The weather was cool and overcast. I could only get a picture of the underwing, but the upper wing was orange towards the head, and white towards the tail, with a black eyespot in the orange section
I have tried a Google image search, but I am not finding any results among common UK or European species. The Orange Tip is not a world away, but the underwing is quite different. Could this be a rare visitor? Size, perhaps 4 cm from head to tail.