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
Only known in Britain from southern England and Cornwall.
Confusingly known from both Whitsand Bay in east Cornwall and Whitesand Bay in west Cornwall. Also reported from Bishop' s Wood (Clark, 1906). Most recently found at Nanjizal in 1923 by R.T. Bannister and The Lizard in 1927 (Keys, 1928).
Habitat & Ecology
Associated with the nests of the ants Formica fusca , Myrmica rubra and probably other species, in dry sandy grasslands on sea cliffs.
Agricultural improvement of semi-natural grasslands; abandonment of grazing, leading to coarsening and scrub development.
Protection of clifflands from development, and maintenance of grazing.
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.