Thanks for that.
I see from the "Distribution" map it seems to be moving north and west.
I saw this at 56.022N -2.858W (from Googlemaps) , which puts it slightly further NW than the map on this site.
It was far from a solitary example.

P7300911.jpg The insect shown was photographed at Aberlady in East Lothian, Scotland, on July 30 2016. There were several flying below half a metre height, landing on vetches, yellow rattle and grasses. The wing arrangement seems odd for a butterfly. Is this a moth? I confess total ignorance of mot...