Which Orange Underwing 2?

Which Orange Underwing 2?

Observation - Which Orange Underwing 2? - UK and Ireland. Description: We've had Archiearis moths on the site for at least the last three years. 14th April my fellow moth-er Andy Culshaw managed to net one (which is shown here) and I subsequently caught another (which is shown http://www.ispot.org.uk/node/322372). I've seen

We've had Archiearis moths on the site for at least the last three years. 14th April my fellow moth-er Andy Culshaw managed to net one (which is shown here) and I subsequently caught another (which is shown http://www.ispot.org.uk/node/322372). I've seen neither Archiearis species well before so am not confident separating them.