. . . . . . . . . "Volucella zonaria" . . "Dipsacus fullonum" . . "Luca Fornasari. 2017. Volucella zonaria interaction->visited flower of Dipsacus fullonum. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/7199801> 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." .