The second most frequent of the migrant hawk-moths; currently (2024), there are 23 records on NBN for the islands. Most occur in the late summer or early autumn. A nocturnal species with a long proboscis which enables it to feed at tubular flowers. Not all records are in yet for 2025 but it is promising to be a good year for this species.

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.