Palearctic Fennoscandia South to North France.
Ireland East through North Europe and Central Europe (including the Alps) East into Russia and on through the Russian Far East and Siberia to the Pacific coast.
Mongolia.
Nearctic from Alaska to Nova Scotia and South to Utah.
Palearctic Fennoscandia South to North France. Ireland East through North Europe and Central Europe (including the Alps) East into Russia and on through the Russian Far East and Siberia to the Pacific coast. Mongolia. Nearctic from Alaska to Nova Scotia and South to Utah.
Helophilus hybridus