An uncommon woodland species found from late May to July. The name derives from four wavy crosslines on the forewing. Larval food-plant is aspen (Populus tremula).

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.