• Johnia as subgenus of Polyrhachis: Donisthorpe, 1943g: 654.
• Polyrhachis (Johnia) as junior synonym of Polyrhachis (Aulacomyrma): Hung, 1967b: 402; Dorow, 1995: 12; Bolton, 1995b: 32; Bolton, 2003: 125.

Citations

• Bolton, B. 1995b. A new general catalogue of the ants of the world. Cambridge, Mass.: Harvard University Press, 504 pp.
• Bolton, B. 2003. Synopsis and classification of Formicidae. Memoirs of the American Entomological Institute 71:1-370. PDF
• Donisthorpe, H. 1943g. A list of the type-species of the genera and subgenera of the Formicidae. [part]. Annals and Magazine of Natural History (11)10:617-688.
• Dorow, W. H. O. 1995. Revision of the ant genus Polyrhachis Smith, 1857 (Hymenoptera: Formicidae: Formicinae) on subgenus level with keys, checklist of species and bibliography. Courier Forschungsinstitut Senckenberg 185:1-113. PDF
• Hung, A. C. F. 1967b. A revision of the ant genus Polyrhachis at the subgeneric level (Hymenoptera: Formicidae). Transactions of the American Entomological Society 93:395-422. PDF
• Karavaiev, V. 1927f. Ameisen aus dem Indo-Australischen Gebiet. III. Zbirnyk Prats' Zoolohichnoho Muzeyu 3:3-52 [= Trudy. Ukrains'ka Akademiya Nauk. Fizichno-Matematichnoho Viddilu 7:3-52]. PDF