Hemming (1967) stated:-
Errata [a nominal species established as a replacement for Papilio caeneus Linnaeus, 1767, Syst. Nat. (ed. 12) 1 (2) : 796].
In 1875 (Proc. amer. Acad. Arts Sci., Boston 10 : 254) Scudder quite without justification rejected the type-selection made by himself in 1872 and sought to select in its place the nominal species Polystichtis zeangira Hübner, [1819 (Verz. bekannt. Schmett. (2) : 18) (a nominal species introduced quite unnecessarily as a replacement for the nominal species Papilio zeanger Stoll, , Aanhangs. Werk Uitl. Kapellen Pieter Cramer : 165, pl. 37, fig. 2). Scudder's mistake in 1875 led some authors (e.g. Stichel, 1930, in Strand's Lep. Cat. 41 : 628, 629) to misuse the name Polystichtis Hübner, employing it in place of Calospila Geyer, , the latter name being sunk as a junior subjective synonym of Polystichtis Correctly interpreted in accordance with Scudder's type-selection of 1872, the name Polystichtis is a junior subjective synonym of Emesis Fabricius, 1807.
The higher classification used here follows Lamas (2008).
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