Eristalis fraterculus, the black-spotted drone fly, is a species of hoverfly with a holarctic distribution. It flies from early June to late October, and occurs in tundra and taiga.[2]
References
^ ab"Eristalis fratercula". Global Biodiversity Information Facility (GBIF). Retrieved 17 December 2020.
^ abSkevington, Jeffrey H.; Locke, Michelle M.; Young, Andrew D.; Moran, Kevin; Crins, William J.; Marshall, Stephen A. (2019). Field Guide to the Flower Flies of Northeastern North America. Princeton, New Jersey: Princeton University Press. ISBN9780691189406.