Oh thanks for that! I'm not very well versed in these things and wondered whether it might be a moth but was fooled because the antennae don't look moth-like!

I can't identify this butterfly and wondered if anyone here can help? It was flying around at the same time as lots of common blues and was the same size as they were. It seems to have a blue tinge on the wings but otherwise seemed brown and cream chequered. Sorry the pics aren't wonderful!