Large Yellow Underwing

The forewings are long, narrow and rounded. They are variable in colour from reddish-brown to blackish brown but with a small black dot close to the leading edge at the tip. The yellow hindwings have a narrow black band without the dark crescent or clouding found in other yellow underwings.

The adults come to light in large numbers and maybe disturbed from plant debris or ground vegetation during the day. The larvae can be found from August to early spring, feeding at night and hiding underground during the day.

Size and Family

• Family – Darts, yellow underwings and clays (Noctuidae)
• Medium Sized
• Wingspan range – 42-52mm

Conservation Status

• UK BAP: Not listed
• Common

Caterpillar Food Plants

A wide range of herbaceous plants and grasses including docks, Marigolds, Foxglove (Digitalis purpurea) and Annual Meadow-grass (Poa annua).

Habitat

Found in all habitats but most abundant in open grassy lowland areas.

Distribution

• Countries – England, Wales, Scotland and Ireland
• Common and widespread throughout Britain, Ireland and the Channel Islands. Occasional large immigrations have also been recorded on the south coast.