A frequently trapped species with records in most years, the main period is December to January. It’s quite widespread in its habitat preferences and equally expansive in the larval food-plants requirements, being numerous tree and shrub 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.