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
Lulworth skipper is evidence to suggest that minimal grazing is not detrimental to the species, and may in fact be beneficial in that it encourages the growth of flowers that act as adult nectar sources. The females lay their eggs in rows of 5 to 6 (although as many as 15 have been recorded) on the flower-sheath of Tor-grass ("Brachypodium pinnatum"), preferring the dead sheaths of tall plants. The care taken by females over where to lay their eggs is considered the only remarkable part of the Lulworth skipper breeding process, otherwise it is considered common. Upon hatching, the 2.5 cm (1