Reinstated on the British list by Tony Irwin, 2016 who differentiates it from Ch. pallida. Workers should re-examine Ch. pallida specimens.
Amendment of records thus re-identified is not possible on online databases (NBN Atlas, GBIF) hence my use of GIS-produced maps on this site. If I receive such amendments to records previously submitted I will correct those
Records were specified by Irwin only in terms of locations within Vice Counties - hence the peculiar map. Keys: Shatalkin & Merz, 2010 & Wang, 1988 Collin, 1944 (who first suggested that this was the same as Ch. pallida)