Distribution:  (First record: 1866 at Findern )  -  (Last record: 29/08/2011 at Dovedale )  -  A very rare species, probably extinct in the county or only holding on in a very isolated population in Dovedale where it was last recorded. It is predominantly a moorland species. In 1986 only six records were known, with the first record in 1866 from Findern and the last one being recorded in 1975. Since only four records of 5 individuals all recorded from Dovedale by the same recorder. The last record in 2011.