A leaf-miner whose food-plant is mainly rowan (Sorbus aucuparia), but other trees and shrubs are also used. Rowan is sporadic across the archipelago, so the species should prove to be reasonably common. The image below was reared off rowan and emerged in June 2021.

References: 
Sterling, P. & Parsons, M. (2023 second edition). Field Guide to the Micro-moths of Great Britain and Ireland.