A Small-Purpled barred Moth
Adonis Blue Click the link for more info'.
Our smallest resident butterfly is easily overlooked, partly because of its size and dusky colouring, but partly because it is often confined to small patches of sheltered grassland where its sole foodplant, Kidney Vetch, is found. Ref; http://butterfly-conservation.org/1313-779/small-blue.html
A Common Carpet Moth
the Burnet Companion