2452 Red Underwing Catocala nupta
(Linnaeus, 1767)Wingspan 65-75 mm.
One of the larger British moths, this species is quite common in the southern half of Britain, and is gradually increasing its range northwards.
It flies in August and September, and comes freely to both light and sugar.
The larva feeds on willow (Salix) and poplar (Populus).