Flying zebra

Well, it's not actually a zebra, nor is it a real zebra butterfly... I just happened to think it looked a little like a zebra.
It was quite big, one wing was about as long as my finger. We found it by the lakeside but unfortunately it seemed to be hurt, it fluttered very erratically over the ground and didn't really fly away when we got near. We started skipping rocks across the water so I picked it up in my hands and moved it somewhere safer. But it continued to flop around and it probably died soon after It was pretty, though.