Which orange underwing 1?

Which orange underwing 1?

Observation - Which orange underwing 1?. Description: We've had Archiearis moths on the site for at least the last three years. Today my fellow moth-er Andy Culshaw managed to net one (which is shown at http://www.ispot.org.uk/node/322948) and I subsequently caught another (which is). I've seen neither

We've had Archiearis moths on the site for at least the last three years. Today my fellow moth-er Andy Culshaw managed to net one (which is shown at http://www.ispot.org.uk/node/322948) and I subsequently caught another (which is).

I've seen neither Archiearis species well before so am not confident separating them.