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
The distribution of this species seems to have a south-western bias with former strongholds in Cornwall, Devon and Dorset. This species seems to have undergone a dramatic decline since the 1950s. It occurs in sandpits, heaths and dunes. There are numerous pre-1972 records in Cornwall but since then it has only been recorded from Penhale Dunes (2002) and the Isles of Scilly. The Isles of Scilly seems to be one of the strongholds for this species in Britain today, and it has been recorded recently from the dunes on Gugh, Tresco, St. Martin' s and St. Mary' s and from coastal heath on St. Martin' s and St. Mary' s.
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.