GENERIC NAMES OF BUTTERFLIES 35 



by the Commission under its Plenary Powers in its Opinion 501 (1958, Opin. int. Comm. zool. 

 Nom. 18 : 1-64) all usages of the specific name cydippe in the combination Papilio cydippe 

 published before 1767 were suppressed for the purposes both of the Law of Priority and of 

 the Law of Homonymy. The effect of this Ruling was to validate the specific name 

 cydippe Linnaeus, 1767, as published in the combination Papilio cydippe, which was thereupon 

 placed on the Official List of Specific Names in Zoology as Name No. 1474. (It should be 

 explained that the action by the Commission described above formed part of a general plan 

 for putting an end to a situation of great confusion which had arisen in connection with the 

 interpretation of a different nominal species also bearing the name Papilio cydippe established 

 by Linnaeus in 1761.) 



ALBERICIA Dufrane, 1945, Bull. Ann. Soc. ent. Belg. 81 : 98. Type-species by original 

 designation : Albericia gomensis Dufrane, 1945, ibid. 81 : 98. 



ALBULINA Tutt, [April] 1909, Nat. Ili-.t. Brit, liutts 3 (6) : 154. Type-species by original 

 designation : Papilio pheretes Hiibner, [1805-1806], Samml. einop. Schmett., Zifer : 45. 



The name Papilio pheretes Hiibner is invalid as a junior homonym of Papilio pheretes 

 Hoffmansegg, 1804 (Mag. f. Insektenh. (llligcr) 3 : 187). Further, these names are objective 

 synonyms, since each is based on Papilio alys Hiibner, [1803-1804] (Samml. rump. Schmett. : 

 pi. Pap. 97, figs 495, 496). 



The discovery by Verity in 1926 (Ent. Rec. 38 : 105) that the nominal species Papilio 

 orbitulus Prunner, 1798 (Lepid. pedement. : 75) had hitherto been misinterpreted had a dis- 

 turbing effect on the nomenclature of this minis First, it was now necessary to transfer to 

 the species always known by the specific name pheretes Hiibner (or Hoffmannsegg) the 

 specific name orbitulus Prunner, which for many d< ■> ades also had been firmly attached to an 

 entirely different species then- and now regal (led as belonging to a different genus. Second, 

 this discovery affected also the application of the generic name Agriades Hiibner. Hitherto 

 the species till then known by the specific name orbitulus had been regarded as the type-species 

 of that genus ; the discovery that the name orbitulus I 'runner applied not to that species but 

 to the species till then known by the name pheretes had the effect of reducing the generic name 

 Albulina Tutt to the status of a junior subjective synonym of Agriades Hiibner. The transfer 

 of the name Agriades Hiibner would have led to great confusion. The situation so created 

 has been explained in detail in the note on the name Agriades. The objectionable transfer of 

 that name was prevented by the Commission using its Plenary Powers to designate Papilio 

 glandon Prunner, 1798 (now found to be the oldest available name applicable to the species 

 previously incorrectly known by the name orbitulus Prunner) to be the type-species of Agriades 

 Hiibner. 



The action described above had the effect of leaving the name Albulina Tutt the oldest 

 available name for the genus having Papilio pheretes as type-species. Unfortunately, how- 

 ever, no action was judged to be practicable to prevent the confusing transfer of the specific 

 name orbitulus Prunner, it being considered at the time when this matter came before the 

 Commission that the painful process of transfer had already reached a point where the best 

 course would be to allow the change to be completed unchecked. Accordingly, the specific 

 name pheretes Hiibner, the specific name of the type-species of Albulina, remains a junior 

 subjective synonym of the specific name orbitulus Prunner. 



The name Albulina Tutt was published as a new name twice in the year 1909. The first of 

 these occasions was in Part 6 of volume 3 of Tutt's Nat. Hist. Brit. Butts, which appeared in 

 April of that year ; the second was in Part 5 ( : 106) of volume 21 of the Ent. Rec, which ap- 

 peared in May. 



ALCIDIS Scudder, 1875, Proc. arner. Acad. Arts Sci., Boston 10 : 107 (a cheironym). 



This is a ghost name, the appearance of which in print is due to a series of incomprehensible 

 errors on the part of Scudder, which are all the more surprising, coming from an author 

 normally so meticulously careful in his work. The facts are set out below. 



The first of the mistakes involved arose from a misreading of a paper by Felder (C.) & 



