Megacanthopus alfkenii Ducke, 1904:362, Lectotype ♀, examined (Mus. Paulista), designated by Richards, 1978Richards, O.W. 1978. The social wasps of the Americas excluding the Vespinae. British Museum (Natural History), London. 1-567.:343; Silveira, 2013Silveira, O.T. 2013. Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). Revista Brasileira de Entomologia 57 (2):173-196.:177, Lectotype ♀, examined (MZSP). - As Mischocyttarus alfkeni: - Starr & Hook, 2003Starr, C.K. & Hook, A.W. 2003. The aculeate Hymenoptera of Trinidad, West Indies. Occasional Papers o the Department of Life Sciences, University of the West Indies 12:1-31. (distribution). - As Mischocyttarus alfkenii: - Silveira et al., 2008Silveira, O.T., S.V. da Costa Neto & O.F.M. da Silveira 2008. Social wasps of two wetland ecosystems in brazilian Amazonia (Hymenoptera, Vespidae, Polistinae). Acta Amazonica 38 (2):333-344. (distribution); O'Connor et al., 2011O'Connor, T.K., C.K. Starr & S.A. Cameron 2011. The Neotropical social wasp Mischocyttarus ‘alfkenii’ Ducke (Hymenoptera: Vespidae) is a pair of ethospecies. Systematic Entomology 36:446-452. (distribution); Silveira, 2013Silveira, O.T. 2013. Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). Revista Brasileira de Entomologia 57 (2):173-196. (distribution); Santos et al., 2015Santos, E.F. dos, Y.C Grandinete & F.B. Noll 2015. Additions to the checklist of Scoliidae, Sphecidae, Pompilidae and Vespidae of Peru, with notes on the endemic status of some species (Hymenoptera, Aculeata). ZooKeys 519:33-48. (distribution). - As Mischocyttarus alfkenii alfkenii:
Mischocyttarus japuraensis Zikán, 1949:147, Richards, 1978Richards, O.W. 1978. The social wasps of the Americas excluding the Vespinae. British Museum (Natural History), London. 1-567.:344, Holotype ♀, examined (Mus. Paulista); Silveira, 2013Silveira, O.T. 2013. Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). Revista Brasileira de Entomologia 57 (2):173-196.:177, Holotype ♀, examined (MZSP, 17.706). Synonymized with Mischocyttarus alfkenii alfkenii (Ducke, 1904) by Richards, 1978Richards, O.W. 1978. The social wasps of the Americas excluding the Vespinae. British Museum (Natural History), London. 1-567.:344. - Silveira, 2013Silveira, O.T. 2013. Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). Revista Brasileira de Entomologia 57 (2):173-196.:177 ( listed as synonym of Mischocyttarus alfkenii (Ducke, 1904)).
Mischocyttarus mamirauae Raw, 1996:3, Silveira, 2013Silveira, O.T. 2013. Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). Revista Brasileira de Entomologia 57 (2):173-196.:177, Holotype ♀ (author's private collection). Synonymized with Mischocyttarus alfkenii (Ducke, 1904) by Silveira, 2013Silveira, O.T. 2013. Social wasp species of Mischocyttarus (Phi) related to M. alfkenii (Ducke) and M. paraguayensis Zikán (Hymenoptera, Vespidae, Polistinae). Revista Brasileira de Entomologia 57 (2):173-196.:177.