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
A very local species but widely distributed in southern England and south Wales. Generally encountered in small numbers, but occasionally (as in some Cornish sites) the species is quite numerous. The presence of Scabious (especially Field Scabious Knautia arvensis ) is a prerequisite. Most of Cornish records are from coastal areas associated with dune systems on the north coast from Upton/Gwithian Towans to Trebetherick near Rock. It is also fairly common just inland from the coast, where Field Scabious grows in hedges and roadside verges. The Cornish sites are now of national importance due to the recent, rapid, decline of the species in other parts of the country.
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.