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
Very localised in southern Britain and has become increasingly scarce.
Joy (1908) refers to a record from the Isles of Scilly in April 1908, when it was found ' not rare by shaking old bundles of reeds lying on the ground' and indicates that he also found it on the neighbouring mainland on the same trip. The record is given as Tresco in the national Carabidae Recording Scheme dataset.
Habitat & Ecology
Found on mud or in lush vegetation of Reedmace Typha spp., sedges Carex spp. and Common Reed Phragmites australis .
The habitat of the species is susceptible to artificial drainage improvements for agriculture or other development.
Protection of all remaining undisturbed wetlands.
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.