I found this wonderful creature clinging to the kitchen window when I went to put the washing out this morning. It moved its wings a little and has the most vivid orange 'undercarriage'. I can't find it in my butterfly books, so I wondered if it is a moth?

Moth

I'm hoping that it is just taking a rest and isn't glued to the window as a result of the spiders' webs that I have neglected to clean!