Distribution: | Circumboreal, tundra and forested regions of Palearctic. Afghanistan, Algeria, Austria, Belarus, Belgium, Bosnia and Herzegovina, Canada, China, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Great Britain, Hungary, Ireland, Italy, Japan (C Honshu), Kazakhstan, Kyrgyzstan, Latvia, Lithuania, Luxembourg, Mongolia, Netherlands, New Zealand (introduced), Norway, Poland, Romania, Russia, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tajikistan, USA (C California, N New Mexico, N Iowa and Maryland). |