Locally common in open habitats, including machair, from June to October. The larval food-plants are largely herbaceous including stinging nettles (Urtica dioica) and bedstraws (Galium spp.).

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.