I think there are two choices for these images, thre Ilex Hairstreak and the False Ilex Hairstreak. The quality of the images are not great and the butterfly is certainy not a fresh specimen. Padfiled writes 'The false ilex hairstreak is generally lighter in tone and the hairstreak itself is composed of short, straight segments. These are not folded into deep curves or 'v's at the anal angle' and what can be seen of the hairstreak supports False Ilex to my eyes.