Lulworth skipper their greatest since its discovery there. With a wingspan of 24 to 28 millimetres, females being larger than males, the Lulworth skipper is a small butterfly, the smallest member of the genus "Thymelicus" in Europe and among the smallest butterflies in Britain. Aside from the size difference, the sexes are distinguished by females having a distinct circle of golden marks on each forewing. Due to their likeness to the rays around the eye of a peacock's feather, these are often known as "sun-ray" markings, and they can faintly appear on males. The Lulworth skipper was first described by German entomologist
Swyre Head, Lulworth and a footpath above. The footpath runs close to the cliff edge and is steeply undulating. Despite the steepness, it is popular for walks and the scenery is spectacular. Between Swyre Head and the natural rock arch of Durdle Door is a small dry valley known as Scratchy Bottom. Swyre Head, Lulworth Swyre Head, Lulworth is a hill and sea cliff which lies on the Jurassic Coast between Bat's Head to the west and Durdle Door to the east, close to Lulworth (further to the east) in Dorset, England. It is located approximately east of Weymouth and west of Swanage.