Rare in the Outer Hebrides, just two records in July 2010 and July 2018. The flight period is July to September over machair and sand-dunes. The larvae feed on several grass species including sheep’s-fescue grass (Festuca ovina) and 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.