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
Local but widespread nationally, recorded from 69 10km squares.
Widespread in VC1. Some colonies may be several kilometres inland, but it is mainly
coastal, having been found from The Kelseys, south of Newquay, right round Land' s End to the eastern coast of The Lizard. West Cornwall is a major national stronghold for this species. It has also been found on most islands in the Isles of Scilly. It is rare in VC2 and the few modern records are all on the south coast; at Bohortha, on the Roseland Peninsula, farther east at Dodman Point, and on Rame Head. Old records from the turn of the 20th century are from Fowey, Tregantle and Whitsand Cliffs. The sole north coast VC2 record is over 100 years ago from Widemouth Bay, near Bude.
Habitat & Ecology
Usually found beneath densely clumpy plants such as Heathers and Thrift Armeria
maritima . Commonest on the coast, but also found on dry heath or chalk downland inland in a few places.
Coarsening of herbage; trampling of path margins (a favoured habitat).
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.