First recorded on the Outer Hebrides in 2009, over the following 15 years the population has exploded, now reaching Lewis. Found in damp places during July and August. Larvae feed on a range of grasses and reeds and can be seen in their hundreds in some years.

References: 
Johnson, C. (2018). Drinker (Euthrix potatoria) in the Outer Hebrides. Hebridean Naturalist, 18, 67-71.
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."