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
Very local in about 25 known sites in southern England and Wales, north to Yorkshire.
Recorded in Tremayne Woods (by the Helford) in 1983.
Habitat & Ecology
Occurs in wet woodland and carr; the larvae live in mud or peat and the adults occur from April to August.
Drainage or pollution of ground water.
The Cornish site is on National Trust land.
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.