Lulworth skipper caterpillars live in the warmest zone of a grass clump, at a height of . The pupal stage lasts for about two weeks, from the beginning of June onwards, until late July. It is formed inside a loose "nest" of silk and grass that is spun deep inside a tussock of tor grass. Imago begin to emerge in the early middle of July and finish emerging in the middle of September. Typically, they will live for five to ten days—the normal lifespan for a non-hibernating butterfly of the Lulworth's seasonal stage. They fly only in strong sunshine and tend to
Lulworth Ranges reasons, access to the public is only permissible when the ranges are not in operation. Large red flags are flown and flashing warning lamps on Bindon Hill and St Alban's Head are lit when the ranges are in use. At such times the entrance gates are locked and wardens patrol the area. Access to the area is by foot either via the South West Coast Path or from the car parks at Lulworth Castle, Tyneham, Ridgeway Hill and Povington Hill. The range walks and coast path are open most weekends and some weekdays. Lulworth Ranges The Lulworth Ranges are military