Commonly recorded, predominantly in the southern islands. An attractive species when fresh, flying from May to August. As the name suggests, the food-plant is foxglove (Digitalis purpurea), with the larvae living within the flowers and consuming the stamens and developing seeds.

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.