366 FRANCIS HEMMING 



PLAGIOTHYRUS Mabille & Boullet, 1919, Ann. Sci. not., Paris, Zool. (10) 2 (4-6) : 247. 

 Type-species by monotypy : Gobalus leucomelas Geyer, [1832], in Hiibner, Zutr. z. Samml. 

 exot. Schmett. 4 : 11, pi. [108], figs 623, 624. 



PLANEMA Doubleday, [1848], Gen. diurn. Lep. (1) : 140. Type-species by selection by 

 Scudder (1875, Pvoc. amer. Acad. Arts Sci., Boston 10 : 252) : Acraea lycoa Godart, [1819], 

 Ency. meth. 9 (Ins.) (1) : 239. 



The taxon represented by the nominal species Acraea lycoa Godart is currently treated 

 subjectively as being congeneric with that represented by Papilio horta Linnaeus, 1764, 

 the type-species of Acraea Fabricius, 1807, of which therefore Planema Doubleday is a junior 

 subjective synonym. This name was used by Aurivillius (1898, K. svenska VetenskAkad. 

 Handl. 31 (No. 5) : 11 7-1 22) and by others who followed his lead for a very distinct, though 

 allied genus. When this mistake came to light the genus wrongly called Planema Doubleday 

 by Aurivillius was found to be without a name correctly applicable to it ; this deficiency 

 was made good in 1934 by the publication of the name Bematistes Hemming. 



PLASMA [anon.], [1933], Zool. Rec. 69 (year 1932) (Ins.) : 304 (an Incorrect Subsequent Spelling 

 of Pasnia Waterhouse, 1932). 



This spelling was due to a mistake by the editor of the volume of the Zool. Rec. for 1933 

 made when recording the publication of the name Pasma Waterhouse in the previous year. 



PLASTINGIA Butler, 1870, Ent. mon. Mag. 7 : 95. Type-species by original designation : 

 Hesperia flavescens Felder (C.) & Felder (R.), [1867], Reise Fregatte " Novara ", Lep. 

 Rhop. (3) : 517. Pi- 7 2 - figs- 7-9- 



PLATYGNATHIA Picard, 1947, Bull. Soc. ent. Fr. 52 : 132. Type-species by original 

 designation : Hesperia phlomidis Herrich-Schaeffer, 1845, Syst. Bearb. Schmett. Enrop. 

 1 : 153, pi. Hesp. 2, figs 8, 9. 



PLATYLESCHES Holland, 1896, Proc. zool. Soc. Lond. 1896 : 72. Type-species by original 

 designation : Parnara (?) picanini Holland, 1894, Ent. News 5 : 91. 



PLATYPHTHIMA Sharp [1907], Zool. Rec. 42 (year 1905) (Ins.) : 235 (an Incorrect Subsequent 

 Spelling of Platypthima Rothschild & Jordan, 1905). 



PLATYPTHIMA Rothschild & Jordan, 1905, Novit. zool. 12 : 458. Type-species by original 

 designation : Platypthima ornata Rothschild & Jordan, 1905, ibid. 12 : 458. 



PLEBEIUS Kirby, 1871, Syn. Cat. diurn. Lep. : 653. Type-species by Crotch (1872, Cistula 

 ent. 1 : 60) : Papilio argus Linnaeus, 1758, Syst. Nat. (ed. 10) 1 : 483. 



Apart from Kluk (1802), of whose work Kirby and his contemporaries were unaware, 

 Kirby was the first author to publish in a strictly binominal form the intermediate term 

 Plebejus (spelled Plebeius by Kirby) rejected by the Commission in its Opinion 124 as not 

 possessing the status of a subgeneric name as of Linnaeus (1758). Kirby in the appendix to 

 his Syn. Cat. applied the name Plebeius to the enormous assemblage (329 species) of Lycaenids 

 which in his main text he had placed in the genus Cupido Schrank, 1801. 



Previous to the adoption of the " One-Letter-Difference " Rule now embodied in Article 

 56(a) of the Code, Plebeius Kirby, 1871, would have been considered a homonym of the name 

 Plebejus Kluk, 1802, and, as the later-published of the two names, would have been rejected 

 under the Law of Homonymy. Although now not invalid under the foregoing Law, the 

 name Plebeius Kirby is invalid, as it is a junior objective synonym of Plebejus Kluk. 



PLEBEJUS Kluk, 1802, Zwierz. Hist. nat. pocz. gospod. 4 : 89. Type-species by selection by 

 Hemming (1933, Entomologist 66 : 224) : Papilio argus Linnaeus, 1758, Syst. Nat. (ed. 10) 



1 : 483- 



The generic name was placed by the Commission in its Opinion 278 in 1954 (Qpin. int. 

 Comm. zool. Nom. 6 : 135-178) on the Official List of Generic Names in Zoology as Name No. 

 705- 



