DistributionRead full entry
Range DescriptionThis species is widespread throughout Europe. Fauna Europaea (Bank et al. 2006) records the species from Norway, Sweden, Denmark (mainland), Latvia, Poland, Lithuania, Republic of Ireland (Eire), Great Britain (UK), Netherlands, Belgium, Luxembourg, France (mainland), Germany, Switzerland, Austria, Czech Republic, Slovakia, Hungary, Italy (mainland), Sardinia (Italy), Sicily (Italy), Balearic Islands (Spain), Portugal (mainland), Bulgaria, Romania, Albania, Slovenia, Serbia, Montenegro, Croatia, the former Yugoslav Republic of Macedonia, and Ukraine. Kantor et al. (2009) note the species has a range extending to western Siberia.
This widespread and common palearctic species, which is rare and localised in Africa, reaches its southern limit in Morocco, where it is presently confined to the northwestern coastal region between Kenitra and Tanger (Ghamizi 1998). It has also been recorded from Algeria during the 19th Century (Brown 1994) but unlikely to still be there. It was once in Egypt in Lake Qaron (Fayoum) but no longer there because this is becoming highly salinised.
There is only one record of this species from south-western Saudi Arabia from the Sudah stream in the Kamis Mushayt-Abha area (Brown and Wright 1980), a locality that is far from its hitherto known distribution (Neubert 1998) and appears to be a relic subpopulation.