Blair's Shoulder-knot, Disley, Cheshire. October 2021
Originally Mediterranean, it was first recorded in the UK in 1951 (Isle of Wight); since then it has spread rapidly north.
The larvae feed on Cypress, including Leylandii - hence the spread. Blair? I don't know who he was, but he also had a Wainscot and a
Mocha named for him.