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
Nationally scarce and local. Predominantly coastal, from South Wales round to Essex. Also confirmed well inland from north Cambridgeshire. Not easy to separate from the Slender Ground-hopper Tetrix subulata , with which it may often be found, so may be overlooked.
Isolated colonies from Hayle to the Bude area on the north coast, and a large population on The Lizard. Small and elusive colonies have been recorded from Penwith, and a singleton was found at Portmellon in 1989.
Habitat & Ecology
Most records are from marshy localities on the Lizard plateau or from wet cliff face
seepages and cliff top marshes on killas cliffs, mostly on species-rich sites.
Trampling, or as at Constantine Bay arable cultivation.
Some larger colonies are within nature reserves.
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.