| Red List status: | Least Concern |
| NERC Act S41: | Not listed |
| Local status: | Has recently become resident in a small number of woodlands. Populations are just establishing and new locations are occasionally found. |
| Size: | Large. |
| Larval foodplant: | Goat Willow, Grey Willow, Crack-willow |
| No. of broods: | One |
| Flight time(s): | Late June to early August
Average first date: 1st July
Average last date: 31st July |
| Winter: | Small larva. Resumes feeding on new leaves in spring |
| Habits: | Sometimes seen taking minerals from the ground or dog muck, most frequently during the first half of the flight period. Adults often gather in the afternoons on tree tops in the highest part of the wood. This is a good place to look for them. Eggs are laid in the middle of the day on shady foodplants. |
| Habitats: | Large blocks of broadleaved woodland or clusters of smaller woods and/or dense scrub where the foodplants are abundant |
