The descriptive text, below the map, is from the Cornish Red Data Book (2009). The map on this web page depicts the organisms distribution and shows the records made pre-2000 and those made since.
Range & Status
Scattered distribution across southern Britain.
Recorded in Tremayne Woods (by the Helford) in 1989.
Habitat & Ecology
The larvae develop in wet decaying wood lying across seepages and small streams within dense woodlands.
Drainage or pollution of ground water. Clearance of fallen branches, etc.
The Cornish site is on National Trust land. Listed on the UK BAP Priority Species list
I.J. Bennallick, S. Board, C.N. French, P.A. Gainey, C. Neil, R. Parslow, A. Spalding and P.E. Tompsett. eds. 2009. Red Data Book for Cornwall and the Isles of Scilly. 2nd Edition.Croceago Press.
The Cornish Red Data Book Project was led by the Cornwall and Isles of Scilly Federation for Biological Recorders (CISFBR). The full text and species accounts (minus the maps) are available on the CISFBR website.