igo FRANCIS HEMMING 



EUTRESIS Doubleday, [October 1847], Gen. diurn. Lep. (1) : 111. Type-species through 

 Section (a) (i) of Article 68 : Eutresis hypereia Doubleday, [1847], ibid. (1) : 112. 



Doubleday gave a very full diagnosis for the genus Eutresis, in which he stated that he had 

 erected this genus for a single species only; he added that this species occurred in Venezuela 

 and that he had given to it the name Eutresis hypereia. He gave also a reference to the then 

 unpublished " Suppl. Plate ", on which this species was to be depicted in fig. 2. That plate 

 however was not published until August 1852. As will be seen from the date, this plate formed 

 part of the continuation of the Gen. diurn. Lep., for which Westwood assumed responsibility 

 after Doubleday's death. As will be seen from the foregoing particulars, Doubleday did not 

 give a description in 1847 for Eutresis hypereia in addition to the combined description which 

 he furnished for this new genus and species. The detailed combined description provides 

 however an adequate " indication " for that nominal species, which ranks therefore as from 

 1847 and not from the later date (August 1852), on which the Supplementary Plate depicting 

 it was published by Westwood. The type-species of the genus Eutresis would rank as having 

 had its type-species determined by monotypy under Section (c) of Article 68, if it were not for 

 the fact that the earlier provision in Section (a) (i) (the so-called " gen. n., sp. n. " clause) 

 of the same Article had not already determined this matter. 



EUTYCHIDE Godman, [1900], in Godman & Salvin, Biol, centr.-amer., Lep. Rhop. 2 : 544. 

 Type-species by original designation : Hesperia physcella Hewitson, 1866, Trans, ent. Soc. 

 Lond. (3) 2 : 498. 



The type-species was redescribed and figured in [1873] (77/. exot. Butts 5 : [103], pi. [54], 

 figs. 44, 45) by Hewitson who there gave a back-reference to the description in the Transactions. 



EUVANESSA Scudder, 1889, Butts Eastern U.S. Canada (1) (3) : 387. Type-species through 

 Section (i) (replacement names) of Article 67 : Papilio antiopa Linnaeus, 1758, Syst. Nat. 

 (ed. 10) 1 : 476. 



The name Euvanessa was introduced by Scudder as a replacement for the name Scudderia 

 Grote, 1873, which is invalid under the Law of Homonymy. 



EVANSIELLA Hayward, 1948, Acta zool. lilloana 5 : 101. Type-species by original designa- 

 tion : Hesperia cordela Plotz, 1882, Stett. ent. Ztg 43 : 328. 



EVEIDES Boisduval, 1870, Consid. Lipid. Guatemala : 35 (an Incorrect Subsequent Spelling 

 of Eueides Hiibner, 1816). 



EUXANTHE Hiibner, [1819], Verz. bekannt. Schmett. (3) : 39. Type-species by monotypy : 

 Papilio eurinome Cramer, [1775], Uitl. Kapellen 1 (6) : 109, pi. 70, fig. A. 



EVEN A Westwood, [1850], in Doubleday, Gen. diurn. Lep. (2) : 269. Type-species by selection by 

 Hemming (1941, /. Soc. Bibl. nat. Hist. 1 : 428) : Papilio crithea Drury, [1773], 77/. nat. Hist. 

 2 : index et 29, pi. 15, figs 5, 6. 



The selection of Papilio crithea Drury in 1941 as type-species made the name Evena West- 

 wood a junior objective synonym of Catuna Kirby, 1871. 



Since the type-selection discussed above, the name Evena Westwood has become invalid for 

 quite a different reason. The name Evena was attributed by Westwood to Boisduval and 

 published in the synonymy of the name Jaera Hiibner, [18 19]. Under the current revised 

 Code it is provided (in Article 11 (d)) that the publication of a name in a synonymy does not 

 confer any status of availability upon that name. Under this provision the name Evena 

 Westwood is invalid and would moreover have been invalid, whatever species had been selec- 

 ted as type-species. 



EVENUS Hiibner, [1819], Verz. bekannt. Schmett. (5) : 78. Type-species by selection by 

 Scudder (1875, Proc. amer. Acad. Arts Sci., Boston 10 : 176) : Papilio endymion Fabricius, 

 1781, Spec. Ins. 2 : 115. 



The taxon represented by the nominal species Papilio endymion Fabricius is currently 



