Eupeodes nielseni is a Palearctic hoverfly.

& Kerppola, S. (2007) and Bartsch, H., Binkiewicz, E., Rådén, A.

[2][3] The male terminalia are figured by Dusek and Laska (1976).

The adult insect is illustrated in colour by Stubbs and Falk (1983)[4] and Torp (1994).

[6] It is found from Fennoscandia south to the Pyrenees and Alps and from Britain eastwards through Northern and Central Europe into European Russia in Pinus forest from May to August.