Eristalis obscura, the dusky drone fly, is a common species of syrphid fly first officially described by Loew in 1866. This species is widespread in the northern part of North America and Europe east to Siberia. The larvae are aquatic filter-feeders of the rat-tailed type.Speight, M.C.D. (2011) Species accounts of European Syrphidae (Diptera), Glasgow 2011. Syrph the Net, the database of European Syrphidae, vol. 65, 285 pp., Syrph the Net publications, Dublin.
References
Further reading