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.

Masoreus wetterhalli - A ground beetle

Range & Status

Very localised on southern coasts.

Regional Distribution

Mainly known from the Lizard Peninsula: Lizard (Keys, 1918 and 1919), and found on

the cliffs at Kynance Cove in 1979 (Alexander, 1982) and 1990 by A.P. Fowles. Also at

Whitesand Bay in 1951 by A.A. Allen.

Habitat & Ecology

Sparsely vegetated, well-drained grassland and heath on sea cliffs, sand dunes and



Agricultural improvement of the semi-natural grasslands of the Lizard Peninsula and

calcareous sand dune systems; abandonment of grazing, leading to coarsening and scrub development.


The known sites are mostly now protected by The National Trust and lie within SSSI.


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.