Eristalis (Eristalis) tenax (Linnaeus, 1758).
Linnaeus, C. (1758) Systema naturae... Ed. 10, Vol. 1. 824 pp. L. Salvii, Holmiae [= Stockholm].
This is a very wide-spread species and it is considered cosmopolitian. E. tenax is known from Palaearctic, Nearctic, Australian, Afrotropical, Oriental and Neotropical Regions, and it is also present in some major islands like Hawaii, Bonins, New Zealand, Australia, and Easter Island.