GENERIC NAMES OF BUTTERFLIES 397 



RISTIA Gagarin, 1936, Revista syniatrica, R. de J. 1936 (1/2) : 8. Type-species by monotypy : 

 Ristia tigrina Gagarin, 1936, ibid. 1936 (1/2) : 8. 



RITRA de Xiceville, 1890, Butts India Burmah Ceylon 3 : 411 nota. Type-species by original 

 designation : Sithon aurea Druce, 1873, Proc. zool. Soc. Lond. 1873 : 352, pi. 33, fig. 1. 



RODINIA Westwood, [1851], in Doubleday, Gen. diiini. Lep. (2) : 430. Type-species by 

 selection by Stichel (1910, Berl. ent. Z. 54 (1/2) : 42) : Erycina calphurnia Saunders, 1850, 

 Trans, ent. Soc. Lond. 5 (9) : 221. 



ROEBERELLA Strand, 1932, Folia zool. hydrobiol., Riga 4 (1) : 145. Type-species through 

 Section (i) (replacement names) of Article 67 : Lemonias calvus Staudinger, [1887], in 

 Staudinger & Schatz, Exot. Schmett. Bd 1 (Th. 1) : 259 ; ibid. Bd 2 : pi. 92. 



The name Roeberella was introduced by Strand as a repla cement for Drepanula Rober 

 [1892], which is invalid under the Law of Homonymy. 



ROHANA Moore, [1880], Lep. Ceylon 1 (1) : 27. Type-species by original designation : 

 Apatura parisatis Westwood, [1850], in Doubleday, Gen. diurn. Lep. (2) : 306 nota. 



ROMALAEOSOMA Rober, [1888], in Schatz, in Staudinger & Schatz, Exot. Schmett. Bd 1 

 (Th. 2) (4) : 162 (an Incorrect Subsequent Spelling of Romaleosoma Blanchard, 1840). 



ROMALEOSOMA Blanchard, 1840, Hist. nat. Ins. 3 : 448. Type-species by original desig- 

 nation : Papilio eleus Drury, [1782], ///. nat. Hist. 3 : index et 14, pi. 12, figs 1, 2. 



ROSWELLIA Fox, 1948, Ent. News 59 : 131. Type-species by original designation : Athesis 

 acrisione Hewitson, 1869, Descr. Equal. Lepul. Buckley : 12. 



RUMICIA Tutt, [May] 1906, Ent. Rec. 18 : 131. Type-species by original designation : 

 Papilio phlaeas Linnaeus, 1761, Fauna svec. (ed. 2) : 285. 



Tutt published the name Rumicia as a new name twice in 1906, first, in May in the serial 

 cited above, second in volume 1 (: 314, 326) of Ins Not. Hist. Brit, liutts in a Part published in 

 July. 



The name Rumicia Tutt is invalid, as it is a junior objective synonym of Lycaena Fabricius, 

 1807. 

 RURALIS Tutt, [1906], Ent. Rec. 18 : 130. Type-species by original designation : Papilio 

 betulae Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 482. 



Tutt erroneously supposed that Ruralis had been introduced in a binominal sense by 

 Barbut in 1781 (Gen. Ins. : 173) and that he had designated the above species as the type- 

 species. In actual fact, Barbut, who was not a binominalist, did neither of these things. 

 The name is attributable to Tutt, by whom it was first validly published. 



The name Ruralis Tutt is invalid, as it is a junior objective synonym of Tliecla Fabricius, 

 1807. 



RUSALKIA Kirby, 1871, Syn. Cat. diurn. Lep. 1306. Type-species through Section (i) 

 (replacement names) of Article 67 : Oreas marathon Felder (C.) & Felder (R.), [1865], 

 Reise Fregalte " Novara ", Lep. Rhop. (2) : 305, pi. 38, figs 23, 24 (a taxon bearing a name 

 having precedence by a First Reviser choice made by Seitz) ([1916], Grossschmett. Erde 5 : 

 662) over the following name published in the same year and in the same work, Oreas ctesiphon 

 Felder (C.) & Felder (R.), [1865], ibid., Lep. Rhop. (2) : 305. 



Kirby introduced the name Rusalkia as a replacement for Oreas Felder (C.) & Felder (R.), 

 [1865], which is invalid under the Law of Homonymy. At that time Oreas was without a 

 type-species, and Kirby did not designate a type-species for Rusalkia. These genera remained 

 without type-species until in 1964 (Annot. Lep. (4) : 130) I selected Oreas marathon Felder 

 (C.) & Felder (R.) as the type-species of Oreas Felder (C.) & Felder (R.), thus making that 

 species automatically under Article 67 (i) the type-species of Rusalkia Kirby also. 



RUSTICUS Hiibner, [1806], Tentamen : [1]. Type-species by monotypy : Papilio argus 

 Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 483. 



The name Ruslicus Hiibner, as of the Tentamen, is invalid through the action of the Com- 



