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 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