. . . . . . . . . "Eristalis tenax" . . "Brassica rapa nipposinica" . . "Catherine Beard. 2016. Eristalis tenax interaction->visited flower of Brassica rapa nipposinica. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4780445> on 05 Apr 2018." . . . . "http://iNaturalist.org is a place where you can record what you see in nature, meet other nature lovers, and learn about the natural world." .