No interactions present.
The only confusion I can think of would be a rather odd form of Willow Beauty. Did you check the underwing for the Willow Beauty pale square spot?
I know exactly what you mean, I had another of these a few weeks back and I thought it looked like a very dark Willow Beauty but with a much more substantial abdomen. I will do the check as I still have it, didnt know about that.
I see quite a few Willow Beauty and this one just has a different look about it- anatomy wise, if that makes sense. I havent been seeing many Willow or Mottled Beauty for a few weeks?
I'll try that check....
Satin Beauty isn't one that turns up at my regular trapping sites. Got some at Box Hill last year and (probably) some there again on Friday night (see http://www.ispot.org.uk/node/286468 for an example)
I had a look at that one you posted recently David, it looks quite like this one to me.
I thought I still had the moth in a tub but it was released with some others early yesterday. Unfortunately I didnt get the check done. Can you explain exactly what I should be looking for incase I get another one like this?
The apex of the underside of the forewing on Willow Beauty is a pale approximately square shaped marking. This is shown well in the text illustration in Skinner's "Colour Identification Guide to Moths of the British Isles".
The picture here http://www.discoverlife.org/mp/20p?see=I_MWS36406&res=640 also shows it
Lat/Lng: 55.0182, -6.1418
OS grid ref: NW353771