. . . . . . . . . "Vespa crabro" . . "Vespula" . . "Dimitǎr Boevski. 2016. Vespa crabro feeding on Vespula. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/4739417> 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." .