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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.

Segestria bavarica

Range & Status

Restricted to the coast of south-west Britain.

Regional Distribution

Under-recorded due to the often inaccessible nature of its habitat, where it occurs in four 10km squares: at St. Marys, Tintagel, Kynance Cove, Nare Head, Chynhals Cliff and Beagles Point.

Habitat & Ecology

Constructs a tubular retreat from which a number of silken threads radiate over the rock surface. Always in small rock crevices on cliffs or walls that are close to the sea.


None known.


Kynance Cove, Chynhals Cliff and Beagles Point are part of the Lizard National Nature Reserve and the cliffs at Tintagel are owned by the National Trust.


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.