Hemming (1967) stated:-
The taxon represented by the nominal species Papilio cyparissa is currently treated subjectively on taxonomic grounds as being congeneric with Najas themis Hübner, , the type-species of the genus Najas Hübner, . On the basis of this subjective synonymy the generic name Euphaedra Hübner is a junior subjective synonym of Najas Hübner, which, as shown above, has twelve years" priority. It would be most objectionable however if the name Euphaedra which is very well-known and has been used continuously since 1871 (Kirby, Syn. Cat. diurn. Lep. : 247) for the genus of African Limenitids concerned, were to be replaced by the name Najas which has never been so used and has indeed only been brought to light in comparatively recent years. In the circumstances the Commission has been asked to reject the name Najas Hübner, thereby clearing the path for the continued use of the name Euphaedra Hübner, which, pending the outcome of the foregoing application is here accepted (in accordance with Article 50 of the Code) in preference to the older name Najas Hübner.
Cowan (1968: 8.) made the following comment for this and other genera:-
The status and type-species of the following genera are at present the subjects of pending applications to the Commission. Against each is shown its relevant Z.N.(S.) Case Number;
* Aetheius Hübner, 1819; 1678
Capys Hewitson; 1748
* Euphaedra Hübner; 1686
* Gonophlebia Felder; 1688
Mantoides Druce; 1768
* Najas Hübner; 1686
Neolycaena de Niceville; 1758
* Ourocnemis Baker; 1687
* Pseudopontia Plotz; 1688
Scoptes Hübner; 1748
Thrix Doherty; 1768
Virgarina Druce; 1768
Of these six Aetheius, Gonophlebia, Najas are all nomina oblita, whose revival would threaten respectively the well-known Ourocnemis, Pseudopontia, and Euphaedra. The Commission is at present deferring rulings on nomina oblita.
Nymphalis eleus Drury was designated as the type-species for Euphaedra Hübner, 1819 (a subgenus of Euphaedrana) by Hecq, 1976, Lambillionea, 76 (7-8) : 57.
Euphaedra Hübner, , has been conserved by the suppresion of Najas Hübner, , (Opinion 1380), 1986, Bulletin of Zoological Nomenclature 43 (1) : 39. Najas was suppressed for law of Priority not Law of Homonymy and was placed on the Official Index of Invalid and Rejected Generic Names in Zoology. Original proposed by Hemming, 1964, Bulletin of Zoological Nomenclature 22 : 102. A further comment was given by Cowan, 1983, Bulletin of Zoological Nomenclature 40 (4) : 244. Not until 1985 was a final vote taken using the plenary powers of the Commission.
EUPHAEDRA was included within the subfamily NYMPHALIDAE: LIMENITINAE by Ackery et al., in Kristensen (1999).
The higher classification used here follows Lamas (2008).
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Search the Biodiversity Heritage Library (BHL) for references to EUPHAEDRA and included species.