Range & Status
A local, predominantly southern and western species in the British Isles.
Cornwall is perhaps the main UK concentration of the species; a large population in Boconnoc Deer Park. May occasionally be overlooked as four-banded longhorn L. quadrifasciata , which is the rarer of the two in Cornwall.
Habitat & Ecology
Larvae develop in the cambial layer of large freshly dead trunks and boughs of broadleaved trees in open woodland and pasture-woodland. Adults nectar at flowers of umbellifers, Bramble Rubus fruticosus agg. and Broom Cytisus scoparius .
Clearance of dead and fallen trees and branches; gaps in age classes of broadleaved trees; loss of old trees.
Boconnoc Park has a sympathetic owner and is a SSSI.