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
Widespread north to Durham; recently recorded in south-west Scotland.
In 1989 recorded near Padstow, Pendower Beach and Tregagle' s Hole, Nare Head; found in numbers at Treluggan Cliff in 2001.
Habitat & Ecology
Coastal, in wet sparsely vegetated seepages on springs and landslips, with larvae in
shallow water. Adults occur from June to August, often on bushes around its open
Any pollution or disturbance of its fragile habitat.
Recorded sites are mostly 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.