152 FRANCIS HEMMING 



Smithson. miscell. Coll. 73 (No. 4) : 19-30 ; republished in facsimile in 1958 (Opin. int. 

 Comm. zool. Nom. 1 (B) : 355-366). 



By a ruling given by the Commission in Opinion 278 (1954, l° c - "*• 6 : I 35 _I 7^) the name 

 Dry as Hiibner, [1806] (of the Tenlamen) was placed on the Official Index of Rejected and 

 Invalid Generic Names in Zoology as Name No. 75. 



DRYAS Hiibner, [1807], Samml. exot. Schmett. 1 : pis [43], [44]- Type-species by selection by 

 Hemming (1933, Entomologist 66 : 197) : Papilio julia Fabricius, 1775, Syst. Ent. : 509. 



Hiibner placed five nominal species in the genus Dryas in volume 1 of the Samml. exot. 

 Schmett., but only the two plates cited above were published in 1807 (see Hemming, 1937, 

 Hiibner 1 : 402). It was on plate [43] that Papilio julia Fabricius was figured. 



DRYAS Boisduval, 1847, in Delegorgue, Voy. Afrique austr. 2 : 588. Type-species by mono- 

 typy : Dryas leda Boisduval, 1847, in Delegorgue, ibid. 2 : 588. 



This name is invalid, as being a junior homonym of Dryas Hiibner, [1807]. 



DRYAS Felder (C.) & Felder (R.), [1865], Reise Fregatte " Novara " (2) : 305. Type-species by 

 monotypy : Limnas cinaron Felder (C.) & Felder (R.), 1861 Wien. ent. Monats. 5 : 101. 



This name is invalid, as being a junior homonym of Dryas Hiibner, [1807]. It has been 

 replaced by the name Aculhua Kirby, 1871. 



DUBIELLA Evans, 1936, Proc. R. ent. Soc. Lond. (B) 5 : 55. Type-species by original designa- 

 tion : Papilio dubius Stoll, [1781], in Cramer, Uitl. Kapellen 4 (30) : 123, pi. 354, figs 

 B, C. 



Following upon an invalid type-selection made by Scudder in 1875 {Proc. amer. Acad. 

 Arts Sci., Boston 10 : 145) the nominal species Papilio dubius Stoll was for long treated 

 erroneously as being the type-species of the genus Coeliades Hiibner, 1818. Attention was 

 drawn to this mistake of Scudder's by myself in 1935 {Trans. R. ent. Soc. Lond. 83 : 436) when 

 I selected Papilio forestan Stoll, [1782], to be the type-species of Coeliades Hiibner. As a 

 result of this correction, the nominal species Papilio dubius Stoll was left without a nomencla- 

 torially available name. It was to make good this deficiency that in the following year 

 Evans introduced the name Dubiella. 



DUBIEREBIA Muschamp, 1915, Mitt. Ent. Zurich 1/6 (1) : 20. Type-species by monotypy : 

 Erebia myops Staudinger, 1881, Stett. ent. Ztg 42 : 296. 



DUCAPA Moore, [1900], Lep. ind. 4 (47) : 209. Type-species through Section (i) (replacement 

 names) of Article 67 : Atella fasciata Felder (C.) & Felder (R.), i860, Wien. ent. Monats. 

 4 : 236. 



Moore introduced the name Ducapa to replace the name Paduca published by himself in 

 November 1886 ; he took this action because he believed that his name Paduca was a junior 

 homonym of the Hesperiid generic name Paduka Distant published in April 1886. Under the 

 current revised Code (Article 56 (a)) a generic name differing in spelling by a single letter from 

 another generic name is not to be treated as a homonym of that name. Accordingly, the 

 names Paduka Distant and Paduca Moore are not to be treated as homonyms of one another ; 

 there was in consequence no need for Moore to reject the name Paduca and to substitute for it 

 the replacement name Ducapa. 



For the reasons explained above, the name Ducapa Moore is invalid, as being a junior 

 objective synonym of the nomenclatorially available name Paduca Moore, 1886. 



DULCEDO Ferreira d' Almeida, 195 1, Arq. Zool. Sao Paulo 7 : 501. Type-species by original 

 designation : Haetera polita Hewitson, 1869, Trans, ent. Soc. Lond. 1869 : 34. 



DUNONIA Mabille, 1876, Bull. Soc. zool. Fr. 1 : 203 (an Incorrect Subsequent Spelling of 

 Junonia Hiibner, [18 19]). 



DURBANIA Trimen, 1862, Trans, ent. Soc. Lond. (3) 1 : 400. Type-species by monotypy : 

 Durbania amakosa Trimen, 1862, ibid. (3) 1 : 402. 



This generic name, which was based on the modern patronymic " d'Urban ", was introduced 



