Fletcher & Nye (1982) stated:-
S. panopus is dated from the wrapper of part 19, not from the title-page of volume 3 which is dated 1782.
The statement by Grote, 1865, Proc. ent. Soc. Philad. 5: 64, `Amplypterus Hübn. (Amplypterus Walk., Clemens), contains discordant material, while A. Ganascus [sic] is regarded evidently as the typical species of his genus by Hübner', has been mistakenly construed as a designation by Grote of Sphinx gannascus Stoll, 1790, as the type-species of Amplypterus Hübner, . The International Commission on Zoological Nomenclature, 1954, Opin. Decl. int. Commn zool. Nom. 6 Opinion 275, ruled that Grote's statement did not constitute a type-species designation and that Kirby's designation of Sphinx panopus Cramer, 1779, is the first valid type-species designation for Amplypterus Hübner, , which was then placed on the Official List of Generic Names in Zoology with Name No.693.
Kitching & Cadiou (2000) list CALYMNIA Walker, 1856; and COMPSOGENE Rothschild & Jordan, 1903 as junior synonyms of AMPLYPTERUS Hübner, 1819.
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