Scientific name: Poecilocampa populi
October to January. Common and well distributed throughout Britain. As the name suggests the adults are on the wing in autumn and winter.
The forewings are charcoal grey-brown in colour with wavy creamy white markings. The females are much larger than the males.
The adults are incapable of feeding. They fly at night and are attracted to light. The caterpillars can be found from April to June feeding at night and resting on twigs or bark during the day, before they pupate under bark or among plant debris. They overwinter as eggs on the foodplant.
Size and Family
- Family – Eggar moths (Lasiocampidae)
- Medium Sized
- Wingspan Range – 30-44mm
- UK BAP: Not listed
Caterpillar Food Plants
Broadleaved tress including oaks, birches, elms, hawthorns, Blackthorn (Prunus spinosa), poplars and sallows
Mainly found in woodland but also scrub, hedgerows and established gardens
- Countries – England, Wales and Scotland
- Common. Well distributed over much of lowland England, Wales, Scotland and Ireland. Local and rare on Guernsey.