Common over much of Scotland but scarce towards the north and west. On the wing from April to May in scrubby, woodland areas. The larval food-plants are 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.