Davey, P., 2009: A rare immigrant trapped a handful of times in south-east England, resident in central and southern Europe, the larva feeding on poplar (Populus spp.), sallow and willow (Salix spp.). In Dorset, the moth has been seen on two occasions: Corfe Castle, one in a trap for wasps in the walled peach garden at the rectory on 9 September 1892 (Reverend E Bankes), Portland, at MV light on 11 September 1993 (M Cade).

This species is similar to Red Underwing2452. Diagnostics include: smooth light grey ground colour; edge of wing has row of black dots not dashes; a deeply-troughed 'W' mark is present on the post-median line.

Hill, L., 2013: Three subsequent records: West Bexington,Marmaris, at MV light on 22 August 2011 (P Sterling) and The Lulworth Estate, at MV light on 9 September 2013 and 12 September 2013 (L Hill).