This is sometimes called the "Duke of Burgundy Fritillary" (e.g. on the National Trust information board outside Winstone's Ice cream factor) but it is quite a different family from the fritillaries.

The Duke can be found on two of our local commons, Rodborough and Bownham Common (Swell's Hill). Peak time for seeing the Duke is the middle of May. They roost in shrubs and trees, which indicates the type of habitat in which they can be found.

Take care if you go looking for the Dukes! They are quite rare and too much tramping over the ground can damage the habitat.