Yellow for id please and advice

[Paulcrook]

Please can someone confirm these photos as being of a clouded yellow. I am sure they are not of a pale clouded yellow (or a Berger's) but how does one tell the difference if you only get a sighting of the underside?

Thanks
Paul

[Neil Hulme]

Hi Paul,
Yes, female Clouded Yellow. The extent and pattern of the chocolate margin (here seen backlit) and ground colour are give-aways.
Best Wishes, Neil