Very small numbers have been found in June and July at several sites between the Uists, Eriskay and Barra. The flight period is from June to early August. The larvae feed in the roots of Common and Sheep's Sorrel (Rumex acetosa) and (R. acetosella).

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