Scarce, just a few records from two sites on South Uist and Eriskay. Found in damp woodland and marshy areas from June to August. The larvae feed on tufted hair grass (Deschampsia cespitosa).

References: 
Leverton, R. & Cubitt, M. (2024). The Larger Moths of Scotland.
Waring, P. & Townsend, M. (2018 third edition). Field Guide to the Moths of Great Britain and Ireland.