GENERIC NAMES OF BUTTERFLIES 81 



counterparts. This request was approved by the Commission whose decision in this matter 

 was embodied in its Opinion 232 published in 1954 (Qpin. int. Comm. zool. Nom. 4 : 249-274). 

 By the ruling given in that Opinion the Commission suppressed the name Brassolis [Illiger], 

 [1807], for the purposes both of the Law of Priority and of the Law of Homonymy, and 

 placed that name on the Official Index of Rejected and Invalid Generic Names in Zoology as 

 Name No. 38. 



In the majority of cases the Illiger names suppressed under the Plenary Powers by the 

 above Opinion had been published by Illiger as the names for monotypical genera ; in a few 

 cases, however, of which the present name is one, he placed two or more species in a genus. 

 As no type-species had been selected by any subsequent author, it was not possible to assign 

 these generic names, after they had been suppressed, to the synonymy of the name of any 

 given generic taxon bearing an available name. In order to overcome this difficulty in the 

 present case, I selected from the three nominal species cited by Illiger the nominal species 

 Potamis leonte Hiibner, [1807] to be the type-species of Brassolis [Illiger]. The nominal 

 species Potamis leonte is considered subjectively on taxonomic grounds to represent the same 

 taxon as that represented by the nominal species Papilio achilles Linnaeus, 1758, the type- 

 species of the genus Morpho Fabricius, 1807. Accordingly, the name Brassolis [Illiger], 1807, 

 as suppressed by the Commission in the Opinion dis< ussed above, is now an objectively 

 invalid name, placed subjectively in the synonymy of the name Morpho Labricius, 1807. 



BRASSOLIS Fabricius, 1807, Mag. f. Insektenk. (Illiger) 6 : 282. 1 ype-species by selection by 

 Blanchard (1840, Hist. nat. Ins. 3 : 453) : Papilio sophorae Linnaeus, 1758, Syst. Nat. 

 (ed. 10) 1 : 471. 



As explained in the note given above, the name Brassolis Fabricius, 1807, was invalid as a 

 junior homonym of Brassolis [Illiger], until that name was suppressed by the Commission 

 under its Plenary Powers. At the same time the Commission placed the name Brassolis 

 Fabricius, 1807, so validated, on the Official List of Generic Names in Zoology as Name No. 658. 



BREMERIA Moore, [1896], Lep. ind. 3 (25) : 9. Type-species by original designation : 

 Adolias schrenhii Menetries, 1858, Bull. phys. math. Acad. Sci. St. Petersb. 17 : 215. 



The name Bremeria Moore is invalid, it being a junior homonym of the name Bremeria 

 Alpheraky, 1892 (in Romanoff, Mim. Up. 6 : 7). 



BREMERIA Tutt, 1906, Nat. Hist. Brit. Butts 1 : 296. Type-species by selection by Lindsey 

 (1921, Univ. Iowa Stud. nat. Hist. 9, No. 4 : 37) : Syrichtus bieti Oberthur, 1886, Etud. cut. 11 : 

 26, pi. 6, fig. 50. 



The name Bremeria Tutt is invalid under the Law of Homonymy, being a junior homonym 

 of Bremeria Alpheraky, 1892 (in Romanoff, Mim. Lip. 6 : 7) and also of the name Bremeria 

 Moore, [1896]. 



BRENTHIS Hiibner, [1819], Verz. behannt. Schmett. (2) : 30. Type-species by selection by 

 Scudder (1872, 4//; Ann. Rep. Peabody Acad. Sci. 1871 145) : Papilio hecate [Denis & 

 Schiffermuller], 1775, Anhundung eines syst. Werkes Schmett. Wiener Gegend : 179. 



BREPHIDIUM Scudder, 1876, Bull. Buffalo Soc. nat. Sci. 3 : 123. Type-species by original 

 selection : Lycaena exilis Boisduval, 1852, Ann. Soc. ent. Fr. (2) 10 : 294. 



BRINTESIA Fruhstorfer, [191 1], in Seitz, Grossschmett. Erde 9 : 307. Type-species through 

 Section (i) (replacement names) of Article 67 : Papilio proserpina [Denis & Schiffermuller], 

 1775, Anhundung syst. Werkes Schmett. Wiener Gegend : 155, 169, pi. ia, fig. 9, pi. ib, figs 

 9a, 9b. 



Fruhstorfer proposed the name Brintesia as a substitute for the name Oreas Hiibner, 

 [1806], of the Tentamen, which is invalid in consequence of the rejection of that work for 

 nomenclatorial purposes by the Commission by the Ruling given in its Opinion 97. The 

 only nominal species placed by Hiibner in Oreas in the Tentamen was Papilio proserpina 

 [Denis & Schiffermuller]. This nominal species is therefore automatically the type-species of 

 Brintesia. 



