. . . . . . . . . "Bombus terrestris" . . "Citrus" . . "Simon Nicholas. 2016. Bombus terrestris interaction->visited flower of Citrus. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/2666926> 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." .