. . . . . . . . . "Eristalis tenax" . . "Tripolium pannonicum" . . "Kostas Zontanos. 2017. Eristalis tenax nectar plant Tripolium pannonicum. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/8759532> 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." .