This resident moth flashes reddish-brown patches on underwings if disturbed. The wings can sometimes have a pinkish/purplish tinge. Adult can be seen flying between May and early August.
Usually only one generation, but a partial second can occur in the south between August and September. Does not feed. Female comes to light before midnight, the male after midnight, in greater numbers. Rests with abdomen curved up and hindwings further forward than the forewings. Larva June to early October.
Size and Family
- Family: Hawk-moths (Sphingidae)
- Size: Large, wingspan 6.5-9cm
Particular Caterpillar Food Plants
Poplars (Populus), Aspen (P. tremula), White Poplar, Black-poplar, Lombardy-poplar, sallows and willows, especially Goat and Grey Willows.
- Countries: England, Northern Ireland, Scotland, Wales.
- Widely distributed, common wherever foodplant occurs.
Low heathland and moorland, fens, woodland, parks and gardens.