Garrison, R. W.; Dijkstra, K.-D. B.; Hämäläinen, M.; Villanueva, R. J. T. Mitragomphus ganzanus Needham, 1944, a Geographically Misplaced Dragonfly, Is a Junior Synonym of Gomphidia kirschii Selys, 1878 (Odonata: Gomphidae). Zootaxa 2015, 3911, 280–286.