. . . . . . . . . "Hagenius brevistylus" . . "Libellula needhami" . . "Greg Lasley. 2010. Hagenius brevistylus predating Libellula needhami. iNaturalist.org. Accessed at <https://www.inaturalist.org/observations/212157> 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." .