A scarce species in northern Scotland with just two records from the Outer Hebrides, both from South Uist. One of the earliest pugs to emerge flying from March to May. Larvae feed on oak (Quercus spp.) and hawthorn (Crataegus monogyna).

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.