374 FRANCIS HEMMING 



In the light of the foregoing information, it can therefore be stated that the taxon repre- 

 sented by the nominal species Hesperia omaha Edwards is considered on taxonomic grounds 

 to be the same as that represented by the nominal species Pamphila maesoides Butler, 1879. 

 As the older of the two specific names concerned, the name omaha Edwards replaces the 

 name maesoides Butler, which therefore sinks as a junior subjective synonym of omaha 

 Edwards. 



For the sake of completeness, it is useful to note that the taxon bearing the foregoing names 

 is currently considered (a) to be a distinct species, and (b) to be congeneric with Pamphila 

 maesa Moore, 1865, which is currently considered to represent the same taxon as that repre- 

 sented by the older-established nominal species Hesperia dara Kellar, [1844] (see Evans, 

 1949, Cat. Hesp. Europ. Asia Australia : 378, 379). Pamphila maesa Moore is the type- 

 species of the genus Padraona Moore, [1881], to which it and its allies were referred up to the 

 close of the investigation described above. At that stage Evans (1935, Stylops 4 : 101) 

 realising that Potanthus Scudder was the older of these two names, adopted it in place of 

 Padraona Moore, which he sank as a junior subjective synonym. 



POTOMANAX Evans, 1953, Cat. amer. Hesp. Brit. Mus. 3 : 137 (an Incorrect Subsequent 

 Spelling of Potamanax Watson, 1893). 



POTOMANAXAS Evans, 1953, Cat. amer. Hesp. Brit. Mus. 3 : 15, 137 (an Incorrect Subse- 

 quent Spelling of Potamanaxas Lindsey, 1925). 



POULTONIA Neave, 1904, Novit. zool. 11 : 336. Type-species by original designation : 

 Poultonia ochrascens Neave, 1904, ibid. 11 : 336, pi. 1, fig. 1 o"- 



The name Poultonia Neave is invalid, as it is a junior homonym of Poultonia Peckham, 

 1901 {Bull. Wisconsin Soc. 1 : 225). It has been replaced by the name Ebepius Hemming, 

 1964. 



POWELLANA Bethune-Baker, 1908, Proc. zool. Soc. Lond. 1908 (1) : 114. Type-species by 

 original designation : Powellana cottoni Bethune-Baker, 1908, ibid. 1908 (1) : 114, pi. 9, 

 fig- 13- 

 POWELLIA Tutt, [1906], Nat. Hist. Brit. Butts 1 : 218. Type-species by original designation: 

 Papilio sao Hubner, [1800-1803], Samml. europ. Schmett. : pi. Pap. 93, figs 471, 472 $ [a 

 taxon bearing a name invalid under the Law of Homonymy, replaced by the name Papilio 

 sertorius Hoffmansegg, 1804, Mag. f. Insektenk. (Illiger) 3 : 203]. 



The name Papilio sao Hubner is invalid, as it is a junior homonym of Papilio sao Berg- 

 strasser, [1779] (Nom. Ins. 2 : 67). It was on this account that this taxon was given the 

 replacement name Papilio sertorius by Hoffmansegg. The name so given is the oldest avail- 

 able name applicable to the present species. 



The name Powellia Tutt is invalid, as it is a junior homonym of the name Powellia Maskell, 

 1879 (Trans. N.Z. Inst. 11 : 223). 



POWELLINA Sharp, [1910], in Zool. Rec. 45 (year 1908) (Ins.) : 319 (an Incorrect Subsequent 

 Spelling of Powellana Bethune-Baker, 1908). 



PRADA Evans, 1949, Cat. Hesp. Europ. Asia Australia : 37, 340. Type-species by original 

 designation : Plastingia rothschildi Evans, 1928, Novit. zool. 34 : 72. 



PRADENA Fruhstorfer, 1900, Berl. ent. Z. 45 : 2 (an Incorrect Subsequent Spelling of Radena 

 Moore, [1880]). 



PRAEPHILOTES Forster, 1938, Mitt, munchn. Ent. Ges. 28 : 105. Type-species by original 

 designation : Lycaena anthracias Christoph, 1877, Hor. Soc. ent. ross. 12 : 239-240, pi. 5, 

 fig. 12. 



PRAETAXILA Fruhstorfer, [23rd July 1914], in Seitz, Grossschmett. Erde 9 (Lief. Exot. 197) : 

 793. Type-species by original designation : Sospita segecia Hewitson, [1861], III. exot. 

 Butts 2 : [92], pi. [ 4 6], figs. 4, 5 <J, 6 ?. 



The exact date of publication of this name is of great importance, for it was published at 



