Distribution; world
Northern Europe, and, more locally, in central Europe. A glacial relict species (Westrich, 1989). Its northern limit of distribution reaches 68°N (Celary, 2007). Also known from Asia Minor and the Russian Far East (Smit, 2018):
AT, BE, CH, CZ, DE, DK, EE, FI, HU, LT, LU, LV, NL, NO, PL, RU, RU-EU, SE, SK, TR
Conservation status; world
Conservation status: CH - RDB4 (NT), CZ - RDB1 (CR), DE - RDB4 (NT), NL - RDB3 (VU)