A scattered distribution across Scotland, which will reflect the distribution of larches (Larix spp.), the larval food-plant. There is just one record for the Outer Hebrides, recorded on South Uist in June 2011. The flight period is from June to August. Larch is planted as a ‘border’ tree to commercial plantations, so more finds are possible.

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.