Common and widespread across the islands. The flight period is from June to August over grassland, machair and gardens. The larvae feed on a range of grasses. A thoroughly confusing species. Not only does it have three forms, it is very similar to several other species.

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.