Range & Status
This species is recorded in Britain, France, Belgium and Germany. In Britain it is reported from 69 10 km grid squares and it is thought to be a declining species, where isolated habitats are at risk from felling or replanting with conifers. In Cornwall there are two sites: in SX37W near Luckett and SX46J at Cotehele Wood. P. major is a useful indicator of primary woodland which is a relatively uncommon habitat in Cornwall.