Lulworth skipper S. A. von Rottemburg in 1775. The butterfly was first discovered in Britain on 15 August 1832, when specimens were taken from Lulworth Cove in Dorset by English naturalist James Charles Dale It was introduced the following year as the Lulworth skipper ("Thymelicus acteon"), a name that has remained unchanged; it is the only one of Britain's vernacular butterfly names for which there has never been a proposed substitute. The male Lulworth skipper has a wingspan of , and the female 25 to 28 mm. This makes it one of Britain's smallest butterflies and, in Europe, the smallest member of
Crystal skipper human-made dredge spoil islands that have been colonized by seaside little bluestem. The crystal skipper is globally rare but locally abundant. Much of the sand dunes on Bogue Banks have been destroyed by development, leaving little habitat for the crystal skipper outside the two state parks. The crystal skipper is a federal species of concern. A “species of concern” is an informal designation by the U.S. Fish and Wildlife Service and is not a term that is defined under the U.S. Endangered Species Act. The crystal skipper is not federally listed as threatened or endangered. Insects cannot be listed under