Lulworth skipper of occurrences exist for Cornwall, but they have not been verified as native colonies. Habitats are primarily on unfertilised calcareous grassland; this includes chalk download, coastal grassland and undercliffs in Britain. In all of these habits Tor-grass ("Illustration 2"), the butterfly's sole food plant and that on which it lays eggs, is widespread. Tall, ungrazed grass is a favoured habitat due to oviposition and larval development; Lulworth skippers have benefited from the move away from tight grazing by sheep in the last century and recently outbreaks of myxomatosis among rabbit populations, which otherwise maintain a lower grass height. However, there
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