Clouded Yellow

thanks bayucca for the confirmation, I removed the Crocea ID...

I think it is not really possible to ID Colias sp. from Spain with a single picture. Colias sp. is certainly correct, but I am not sure about Crocea. There are many others, which sometimes you have to go back to caterpillar stage to be sure. Not even the host plant is safe for separating the different species.

thanks again Martini...

And I am not the expert. Probably the bright common one is your culprit. Here is a link for Colias croceus. Probable, but I would not like to say for certain. http://magicoflife.org/butterfly_photos/...

thanks Martini. Seems like there is a huge list of clouded yellows... This must be a variety that is found in Spain.