Diodontus freisei misident.
Heathland districts, largely from Dorset to Essex. There are also a few recent records from Staffordshire (Archer 2000; S. Falk, pers. comm.) and Shropshire (I. Cheeseborough 2002 and S. Falk 2012). Also occurs on the Channel Islands.
Overseas, a poorly known species; scattered widely in northern and central Europe (Lomholdt 1975-76).