GENERIC NAMES OF BUTTERFLIES 237 



included in the genus. The contention advanced by Nabokov is therefore considered to be 

 unsound, the view here taken being taken that the nine originally included species were all 

 equally eligible for selection as the type-species and therefore that the selection of Cupido 

 speciosa Staudinger as type-species made in 1929 was perfectly valid under the Code. 



ITYS de Niceville, 1805, J . Bombay nat. Hist. Soc. 9 (4) : 377. Type-species by original desig- 

 nation : Itys iadera de Niceville, 1895, ibid. 9 (4) : 379, pi. Q, fig. 52 o*- 



The name Itys de Niceville is invalid under the Law of Homonymy, being a junior homonym 

 (a) of Itys Wagler, 1831 (Isis 1831 : 535) and (b) of Itys Pickard, 1894 (in Godman & Salvin, 

 Biol, cenlr .-amer . , Arachn. Aran. 1 : 127). It has been replaced by the name Kineta Lindsey, 

 1925- 



IXIADES Hiibner, [1825], Verz. bekannt. Schmett., Anzeiger : 6 (an Incorrect Subsequent 

 Spelling of Ixias Hiibner, [1819]). 



JXIAS Hiibner, [1819], Verz. bekannt. Schmett. (6) : 95. Type-species by selection by Butler 

 (1870, Cistula ent. 1 : 48) : Papilio pyrene Linnaeus, 1764, Mus. I.ud. Ulr. : 241. 



JACOONA Distant, 1884, Rhop. malay. : 233, 241. Type-species by original designation : 

 Myrina anasuja Felder (C.) & Felder (It.), [1865], Reise Fregatte " Novara ", Lep. lthop. 

 (2) : 237, pi. 30, figs 3, 4. 



JAERA Hiibner, [1819], Verz. bekannt. Schmett. (3) : 38. Type-species by selection by Hemming 

 (1943, Proc. R. ent. Soc. Lond. (B) 12 : 28) : Papilio crithea Drury, 1773', ///■ »at. Hist. 

 2 : index et 29, pi. 16, figs 5, 5. 



The name J aer a Hiibner is invalid, it being a junior homonym of Jaera Leach, 1815 (Trans, 

 linn. Soc. Lond. 11 (2) : 373). A first attempt to provide Jaera Hiibner with a valid replace- 

 ment name proved unsuccessful ; this was when in 1867 Cajetan & Rudolph Felder published 

 the replacement name Ettomma, a name which was unfortunately itself invalid under the Law 

 of Homonymy. In 1871 however the name Jaera was successfully replaced by Kirby by the 

 name Catuna. 



The position as regards the determination of a type-species for this genus has been fully 

 explained in the note already given on the name Catuna Kirby. It may be summarized 

 briefly as follows : (a) When in 1871 Kirby established the replacement genus Catuna, no 

 type-species had been designated either for Jaera Hiibner, the nominal genus, the name of 

 which was so replaced, or for the nomenclatorially invalid replacement genus Euomma 

 Felder (C.) & Felder (R.), [1867] ; (b) Kirby when introducing the replacement genus Catuna 

 in 1 87 1, did not designate a type-species for it ; (c) in 1873 Kirby attempted to make good 

 this deficiency, but the nominal species which he then selected as the type-species was not 

 one of those placed by Hiibner in his genus Jaera and was therefore ineligible for selection as 

 the type-species of Catuna, in view of the fact that that genus was no more than a replacement 

 genus for Jaera ; (d) it was not until 1943 that a validly established type-species was pro- 

 vided, it being in that year that I selected Papilio crithea Drury, one of Hubner's original 

 species, to be the type-species of Jaera Hiibner and therefore automatically also for the 

 replacement genus Catuna Kirby, 1871, and for its nomenclatorially invalid predecessor, the 

 replacement genus Euomma Felder (C.) & Felder (R.), [1867]. 



JALMENUS Hiibner, 1818, Zutr. z. Samml. exot. Schmett. 1 : 29. Type-species by selection 

 by Scudder (1875, Proc. amer. Acad. Arts Sci., Boston 10 : 199) : Jalmenus evagoras 

 Hiibner, 1818, ibid. 1 : 29, pi. [31], figs 175, 176. 



The taxon represented by the name Jalmenus evagoras Hiibner is currently treated sub- 

 jectively as being the same as that represented by the older-established nominal species 

 Papilio evagoras Donovan, 1805 (Epitome nat. Hist. Ins. New Holland . . : signature F [1]). 

 It is possible indeed that it was Donovan's evagoras that Hiibner was referring to, but both in 

 the Zulrage and in Signature 5 ( : 75) of the V erzeichniss published in the following year 

 Hiibner made no reference to Donovan and treated the name evagoras as a new name of his 



