GENERIC NAMES OF BUTTERFLIES 327 



had been printed separately. Article 32(b) of the Code provides that, when a name is origi- 

 nally published in two or more spellings, the spelling to be accepted as the Correct Original 

 Spelling shall be determined by the First Reviser. In the present case the " -oetus " spelling 

 has been used in all the subsequent primary literature (from Elwes & Edwards, 1897 {Trans, 

 zool. Soc. Land. 14 (4) : 104) onwards), except by Evans (1927) who, as already shown, used 

 the " -aetus " spelling, further misspelling this name by omitting the letter " h " after the 

 letter " p " at the end of the preceding syllable, the name appearing in the strange form 

 " Orthopaetus ". The question of the treatment to be accorded to variant original spellings 

 was first dealt with in 1953 by the Zoological Congress held at Copenhagen (1953, Copenhagen 

 Decisions on Zoological Nomenclature : 44, paragraph 71 (1) (b) (hi)) the Congress directing 

 that in such a case the spelling there termed the " Valid Original Spelling " shall be the 

 spelling " employed by the lust Subsequent User ". When this decision was incorporated 

 in the revised Code — as Article 32(b), the " First Reviser " was -substituted for the " First 

 Subsequent 1'ser ". It is not clear whether this change in the wording of this provision was 

 made for the purpose of tightening-up the Copenhagen decision or whether it was made 

 merely with the object of bringing the language used more into line with that employed in 

 somewhat similar provisions elsewhere in the (ink-. I f Article 32 is to be read as having the 

 same meaning as the Copenhagen decision quoted above, then the " -oetus " spelling became 

 the Correct Original Spelling when it was adopted in 1897 by Elwes & Edwards in their 

 capacity as the First Subsequent User. II however the provision in Article 32 regarding 

 the role of the First Reviser in such cases is to be rigidly construed, the position is that this 

 generic name is without a definitely determined Correct Original Spelling. To overcome this 

 difficulty I now select the " -oetus, " spelling to be the Correct Original Spelling, at the same 

 time rejecting the " -aetus " spelling as an Incorrect Original Spelling. 



ORTHOS Evans, 1955, Cat. amer. Hesp. Brit. Mus. 4 : 266, 292. Type-species by original 

 designation : Eutychide orthos Godman, [1900], in Godman & Salvin, Biol, centr.-amer., 

 I.ep. Rhop. 2 : 546, pi. 99, figs 17-19. 



OSMODES Holland, 1892, Ann. Mag. nat. Hist. (6) 10 : 291 et nota. Type-species by original 

 designation : Hesperia laronia Hewitson, 1868, Descr. One Hundred new Spec. Hesp. 

 (2) : 35- 



OSMODES Watson, 1803, Proc. zool. Soc. Lond. 1893 : 71, 78. Type-species by original designa- 

 tion : Hesperia laronia Hewitson, 1868, Descr. One Hundred new Spec. Hesp. (2) : 35. 



Watson made no reference to Holland's paper of the previous year and expressly marked 

 this genus as being " nov." It is clear that there must have been some communication, 

 direct or indirect, between Watson and Holland and that it was Watson who orignally 

 devised this name, for in his paper of 1892 Holland stated that Osmodes was a manuscript 

 name of Watson's. It may be concluded that, when Watson wrote his paper, which must 

 have been in 1892, for it was published as early as January in 1893, he was not aware that 

 Holland had anticipated his publication of this name. It is possible indeed that at that time 

 Holland's paper had not as yet actually been published. Whatever may be the explanation 

 of this incident, the name Osmodes Watson, 1893, is invalid, being both a junior homonym of, 

 and a junior objective synonym of, Osmodes Holland, 1892. 



OSPHANTES Holland, 1896, Proc. zool. Soc. Lond. 1896 : 46. Type-species by original 

 designation : Plastingia ogowena Mabille, 1891, Bull. C.R. Soc. ent. Belg. 35 : exxi. 



It should be noted that the vowel at the beginning of the second syllable of the specific 

 name of the type-species is an " " and not an " a ", as incorrectly spelled by various authors. 



OTACUSTESIS Dyar, 1914, Proc. U.S. nat. Mus. 47 (2050) : 147. Type-species by original 

 designation : Otacustesis pericopidis Dyar, 1914, ibid. 47 (2050) : 147. 



The taxon represented by the nominal species Otacustesis pericopidis is currently treated 

 subjectively on taxonomic grounds as being the same as that represented by the nominal 

 species Lepricornis ochracea Stichel, 1910 {in Wytsman's Gen. Ins. 112 (A) : 147). 



