Welsh Wave and Waved Carpet at Coed Y Bont

I was surprised to see these in the trap especially as there were about 6 or 7 which initially in the morning gloom I took to be the same species.  What is that common that I don't recognise them immediately?  Obviously once I looked properly I was quite excited to have 2 sp new to me and another two important records for CYB.  The carpet was the numerous one though a couple escaped without a proper look so could have been either.
Lots of Scorched Wings and Common Lutestrings all in excellent condition.