Female Orange Tip on Cuckooflower
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I have agreed as it is a female Orange Tip but I'm not sure about the sub-species bit. Looking at the NBN gateway maps I think it is more likely to be just Anthocharis cardamines. Look at it and if you agree it might be worth submitting a revised ID.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
Lat/Lng: 54.5, -6.3
OS grid ref: NW2626