GENERIC NAMES OF BUTTERFLIES 323 



As has been explained in the note on the name Oreas Hubner, [1806] (of the Tentamen), 

 the name of the type-species of this genus (Papilio proserpina [Denis & Schiffermuller], 1775) 

 is a subjective synonym of the name Papilio circe Fabricius, 1775, a name which under 

 Opinion 516 ranks as the older of these two names. 



OREAS Felder (C.) & Felder (R.), [1865], Reise Fregatte " Novara ", Lep. Rhop. (2) : 305. 

 Type-species by selection by Hemming (1964, Annot. Lep. (4) : 129) : Oreas marathon 

 Felder (C.) & Felder (R.), [1865], Reise Fregatte " Novara ", Lep. Rhop. (2) : 305, pi. 38, 

 figs. 23, 24. 



The name Oreas Felder (C.) & Felder (R.) was introduced as a new name, but no type- 

 species was designated for the genus so named. Realizing that this generic name was invalid 

 under the Law of Homonymy, Kirby in 1871 replaced it by the name Rusalhia but he in his 

 turn did not designate a type-species. A type-selection for either of these nominal genera 

 would automatically have constituted a type-selection for both, but none was made until in 

 1964 I selected Oreas marathon to be the type-species of Oreas Felder & 1 elder and therefore 

 also of the replacement genus Rusalhia Kirby, 1871. 



Oreas Felder & Felder is invalid as a junior homonym of Oreas Hubner, [1807]. Its replace- 

 ment Rusalhia Kirby, 1 -S 7 1 , is an available name 



0RE1NA Westwood, 1841, in Humphreys & Westwood, Brit. Butts Transformations (ed. 1) : 

 76. Type-species by selection by Butler (1868, lint. num. Mag. 4 : 194) : Papilio cassiope 

 Fabricius, 1787, Mantissa Ins. 2 : 42. 



The name Oreina Westwood is invalid, as it is a junior homonym of Oreina Chevrolet, 1835 

 (in Dejean, Cat. CoUopt. (ed. 2) (5) : 402.) 



The name of the type-species of this genus (Papilio cassiope Fabricius) is invalid because it 

 is a junior homonym of the older name Papilio cassiope Cramer, [1775] (Uitl. Kapellen 

 1 (5) : 88). The taxon represented by the foregoing nominal species is currently treated 

 subjectively on taxonomic grounds as being the same as that represented by the nominal 

 species Papilio aetherins Esper, [1805] (Die Schmett., Suppl. 1-4 Theils : pi. 122, figs 3 (J. 

 4 $, no text). This taxon is accordingly currently known by the species-group name aethe- 

 rius Esper ; it is considered to be a subspecies of the taxon represented by the older-estab- 

 lished nominal species Papilio epiphron Knoch, 178^ (Beitr. I nsektengesch. 3 : 131, pi. 6, 

 ng. 7 ?)• 



OREISPLANUS Waterhouse & Lyell, 1914. Butts Australia : X, 174, 183. Type-species by 

 original designation (: 183) : Hesperilla munionga Olliff, 1890, Proc. linn. Soc. N.S.W. 

 (2) 4 (3) : 623. 



OREIXENICA Waterhouse & Lyell, 1914, Butts Australia 15, 28, 41. Type-species by 

 original designation : Lasiommata (?) lathoniella Westwood, [1851], in Doubleday, 

 Gen. diurn. Lep. (2) : 387 nola. 



OREOGENES Stichel, 1899, Berl. ent. Z. 44 : 321. Type-species by original designation : 

 Ithimoa excelsa Felder (C.) & Felder (R.), 1862, Wien. ent. Monats. 6 : 415. 



OREOLYCE Toxopeus, 1927, Tijdschr. Ent. 70 : 256, 277. Type-species by original designa- 

 tion : Lycaena quadriplaga Snellen, 1892, Tijdschr. Ent. 35 : 143. 



ORESSINOMA Doubleday, [1849], Gen. diurn. Lep. (2) : pi. 62, fig. 5. Type-species by 

 monotypy : Oressinoma typhula Doubleday, [1849], ibid. (2) : pi. 62, fig. 5 [text ((2) : 

 372) by Westwood published in 1851]. 



ORESTIAS Felder (C.) & Felder (R.), 1862, Wien. ent. Monats. 6 : 73. Type-species by 

 monotypy : Limnas vitula Hewitson, [1852], 77/. exot. Butts 1 : [118], pi. [59], fig. 5. 



The name Orestias Felder & Felder is invalid, as it is a junior homonym of Orestias Valen- 

 ciennes, 1839 (L'Institut 7 : 118) and also of Orestias Cuvier & Valenciennes, 1846 (Hist. nat. 

 Poissons 18 : 225). It has been replaced by the name Cartea Kirby, 1781. 



