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 rare species last found in Cornwall on Blackthorn Prunus spinosa on the banks of Drift Reservoir in West Penwith (1996). The specimen was destroyed by rising water levels. More recently (2007) a small amount of this species has been found in an old apple orchard in Hertfordshire and in Guernsey (2007) on Blackthorn Prunus spinosa . A sizeable population is also recorded from the Kinsale area (2008) in S.W. Ireland thus raising the possibility that it may still be present in Cornwall.
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.