Scientific name: Watsonalla binaria
Two generations from May to June and late July to mid-September. Common and well distributed as far north as Cumbria. Quite a distinctive orange-brown moth which rests with its broad wings held flat.
The forewings have two well-defined pale cross-lines and two blackish spots in the centre. The males are often darker and smaller than the female. The males can occasionally be seen flying high around oak trees.
The larvae can be seen from June to July and late August to September which then overwinter as pupae in a tough brown cocoon which is spun inside a tightly folded oak leaf.
Size and Family
- Family – Hook tips (Drepanidae)
- Small Sized
- Wingspan Range – 26-36mm
- UK BAP: Priority species (research only)
Caterpillar Food Plants
Pedunculate Oak (Quercus robur) and Sessile Oak (Quercus petraea) and probably Turkey Oak (Quercus cerris).
Most numerous in oak woodland but can also be found in hedgerows, parks and gardens.
- Countries – England, Wales, Scotland and Ireland
- Well distributed in Wales and England as far north as Cumbria. Recently reported in southern Scotland and the Isle of Man. Occasional in the Channel Islands.