Hi all, I got this pic. early may and I am not sure of ID. It looks to be the right size for P. rapae, but the wing colour seems to be more green than white. I would be happy to read comments from the forum. Thanks.
I'm pretty certain that this the male Large White Pieris brassicae with the underwing covering the upperwing. The key identification marks are the smudges of black on the top and middle of the underwing.
Thanks for input. The 'fly was much smaller than I would have expected for brassicae and my book does not show underwing pics. If the insect had only opened the wings I would have been assured of an easy ID. I expect you are correct, cheers.
It is said that here in Somerset we have large Small Whites and small Large Whites so it is not always possible to identify by size alone. A great book on butterflies is the newly re-published "The Butterflies of Britain and Ireland" by Jeremy Thomas illustrated by Richard Lewington and published by British Wildlife Publishing. It shows every aspect of the butterfly's life including resting. If you are at all interested in Butterflies it is a 'must have' book.