Woodland walk ...

Our nine year old niece came for a "sleep over" last night. This morning she decided we would go for a woodland walk. This we did and I got some great shots of all sorts of things, she's a brilliant apprentice! What turned out to be a little stroll to the the newsagents for the Sunday paper, followed by a look in the woods, turned in to a marathon which lasted well over two hours, we had fun though ...

I know nothing about butterflies, can anyone enlighten me as to which one this is?