Cornish Biodiversity Network  -  Supporting Wildlife Recording

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Cornish Red Data (2009)

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.

Gnaphosa occidentalis

Range & Status

Only recorded in Britain from Cornwall.

Regional Distribution

Recorded from two locations on The Lizard, Cadgwith (1922) and Kynance Cove (1932). Despite extensive searches at both sites this species had not been relocated at these sites. It was rediscovered on the army training ground at Penhale near Newquay, in June 2004 (Smithers, 2004).

Habitat & Ecology

This information was not recorded from The Lizard sites but both of the sites comprise a mixture of coastal heath or grassland. At Penhale the single female was found under a stone at the edge of a path through an area of cliff top grassland with heather.


Until the true habitat for this species has been identified it is difficult to identify specific threats. However public pressure on cliff top grasslands is likely to lead to loss of suitable habitat.


Both Cornish sites are within a National Nature Reserve.


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.

Cornish Biodiversity Network. 2017.