G E N E K J C N AMES OF B U T T E R F L I E S 387 



taxon represented by the foregoing nominal species is currently treated subjectively on taxon- 

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

 Astictopterus jama Felder (C.) & Felder (K.), i860 (Wien. ent. Monats. 4 : 401). This nominal 

 species is the type-species of the genus Astictopterus Felder (C.) & Felder (R.), i860. 



PSOLOS Watson, 1893, Proc. zool. Soc. Lond. 1893 : 87 (a manuscript name published in a 

 synonymy and therefore invalid under Article 11(d)). 



Like Semper in 1892, Watson in 1893 treated Psolos as a manuscript name of Mabille's 

 and placed it as a doubtful synonym of Sancus de Xiceville. He added with a note of 

 interrogation that the type-species of Psolos was Tagiades pulligo Mabille, 1876. This species 

 was definitely selected ;is the type-species of Psolos by Lindsey in 1925 {Ann. ent. Soc. Amer. 

 18 : 99). As a name published in a synonymy, Psolos Watson is invalid. If Psolos Watson 

 had not been unavailable on the above account, it would nevertheless have been invalid, 

 both as a junior homonym of Psolos Semper, 1892 — and, like that name, also of Psolos 

 Staudinger, 1889, if that in turn had been an available name and also as a junior objective 

 synonym of Psolos Semper, 1892. 



PSORALIS Mabille, 1904, in Wytsman's Gen. Ins. 17 (B) : 133. Type-species by mono- 

 typy : Psoralis sabaeus Mabille, 1904, ibid. 17 (13) : 133. 



The taxon represented by the nominal species Psoralis sabaeus Mabille was treated sub- 

 jectively on taxonomic grounds by Evans in 1955 (Cat. amer. Hesp. Brit. Mus 4 : 1721 .1-. 

 representing the same taxon as that represented by tin- older-established nominal spe 

 I'atnphila idea Weeks, 1901 (Proc. Net England zool. Club 2 : 86). Further, Evans there 

 identified with the last-mentioned nominal species Pampliila artiei Weeks, 1901 (loc. cit. 

 2 : 91). It may be supposed that in giving preference to the name idea over the name 

 artiei Evans was influenced by the principle of page precedence, a principle at the time in 

 question (1055) being commonly adopted In the present revised Code (Article 24(a)) the 

 relative precedence to be accorded to names such as the above, when published on the same 

 date, depends on the choice of the First Reviser. No such choice had been made in this 

 case before Evans (1955) and accordingly his action on that occasion ranks as a First Reviser 

 choice and the specific name idea Weeks takes precedence over the name artiei Weeks. 



PTEROGRA PHI UM Stichel, 1910, in Wytsman's Gen. his. 112 (A) : 236. Type-species by 

 original designation : Pterographium aphaniodes Stichel, 1910, ibid. 112 (A) : 237 nota. 



PTERONYMIA Butler & Druce, [872, Cistula ent. 1 : 96. Type-species by original desig- 

 nation : Ithomia aletta Ilewitson, [1854], III. exot. Butts 1 : [29], pi. [15], fig. 31. 



PTEROTE1NON Watson, 1893, Proc. zool. Soc. Lond. 1893 : 7, 124. Type-species through 

 Section (i) (replacement names) of Article 67 : Hesperia laufella Ilewitson, [1868], ///. exot. 

 Butts 4 : [no], pi. [58], figs 28, 29, 30. 



The name Pteroteinon was introduced as a replacement for the name Tanyptera Mabille, 

 1877, which is invalid under the Law of Homonymy. 



PTEROURUS Scopoli, 1777, Introd. Hist. nat. : 433. Type-species by selection by Scudder 

 (1872, 4th Ann. Rep. Peabody Acad. Sci. 1871 : 64) : Papilio troilus Linnaeus, 1758, Syst. 

 Nat. (ed. 10) 1 : 459. 



PTEROXYS Watson, 1893, Proc. zool. Soc. Lond. 1893 : 18, 29. Type-species by original 

 designation : Eiidamas phanaeus Hewitson, 1867, Descr. One Hundred new Spec. Hesp. 

 1 : 14. 



In the same year as that in which Watson published the name Pteroxys for the present 

 Hesperiid genus, Hampson established a new nominal genus of Psychid moths under the same 

 name (Pteroxys Hampson, 1893 (III. typ. Spec. Lep.-Het. Brit. Mus. 9 : 68)). Fortunately, 

 there is precise information as to the exact date of publication of each of these names : 

 (a) The part of the volume for 1893 of the Proc. zool. Soc. Lond. containing the name Pteroxys 

 Watson was — as I have been kindly informed by Mr. F. Martin Duncan — published on 1st 

 June 1893 ; (b) As regards the name Pteroxys Hampson, there is a note by Hampson in his 



