Here is a moth that was in our house & then we found one later in the car but I don't know what sort it is. It had a flash of orange underneath. Can anyone help?
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Sorry, got no idea (can't find it in my book at any rate) but it's rather lovely!

It's one of the Yellow Underwings (Noctua sp.), possibly Lesser.
BTW, where abouts are you, because they vary with locality.
We're in Lancashire. The closest Skippy could find was a 'Heart & Dart' but it wasn't identical.
Like you say there are regional variations. I have seen three in two days.