Small Skipper
Thymelicus sylvestris

The sexes are similar in size and appearance, apart from a black scent line across each upper forewing on the males. The upperwings are bright orange-brown, with faint black veins and black margins. The underwings are a dull orange-brown, tinged with grey-green, and are not patterned.
It can be distinguished from the Lulworth Skipper which is smaller and less golden.
Dimensions:
Adult wingspan: 27-34mm.