This sub-species of the Sandhill Rustic Moth is confined to sand dune systems in North Wales and North-West England. Other sub-species – all coastal but with varying habitat requirements – occur in Cornwall (ssp. leechi), South-West Ireland (ssp. knilli) and Essex/Kent (ssp. demuthi). The Red Data Book lists ssp. leechi as Endangered and ssp. gueneei as Vulnerable (Shirt 1987).