i 4 4 FRANCIS HEMMING 



DIAEUS Godman & Salvin, [1895], Biol, centr.-amer., Lep. Rhop. 2 : 413. Type-species by 

 selection by Lindsey (1925, Ann. ent. Soc. Amer. 18 : 84) : Leucochitonea lacaena Hewitson, 

 [1869], 77/. exot. Butts 4 : [113], pi. [60], fig. 3. 



DIAGORA Snellen, 1894, Tijdschr. Ent. 37 : 67. Type-species by selection by Hemming 

 (1934, Stylops 3 : 143) : Apatura japonica Felder (C.) & Felder (R.), 1862, Wien. ent. 

 Monats. 6 : 27. 



DICALLANEURA Butler, 1867, Proc. zool. Soc. Lond. 1867 : 37. Type-species by selection 

 by Scudder (1875, Proc. amer. Acad. Arts Set., Boston 10 : 156) : Argynnis pulchra Guerin- 

 Meneville, 1829, in Duperry, Voy. autour Monde " Coquille ", Zool. 2 : pi. 16, figs 2, 3. 



DICALLONEURA Scudder, 1882, Nomencl. zool., Univ. Index : 96 (an Incorrect Subsequent 

 Spelling of Dicallaneura Butler, 1867). 



DICHELURA Mabille, 1902, Bull. Soc. ent. Fr. 1902 : 179. Type-species by monotypy : 

 Dichelura tricuspidata Mabille, 1902, ibid. 1902 : 180. 



Mabille published this name as a new name for a second time in the following year ; this was 

 in 1903 {in Wytsman's Gen. Ins. 17 (A) : 47), again placing only the above species in this genus. 



This generic name is invalid, as it is a junior homonym of Dichelura Agassiz, 1845 (Nomencl. 

 zool., Dipt. : 11), an emendation of Dichelaera Macquart, 1838. 



DICHORA Scudder, 1889, Ann. Rep. U.S. geol. Survey 8 (1) : 470. Type-species by monotypy : 

 Libythea labdaca Westwood, [July 1851], in Doubleday, Gen. diurn. Lep. (2) : pi. 68, fig. 6 ; 

 id., [August 1851], in Doubleday, ibid. (2) : 413 nota. 



This generic name is invalid, as it is a junior homonym of Dichora Paetel, 1875 (Fam. Gatt. 

 Moll. : 69). It was replaced in 1925 by the name J era Lindsey. 



DICHORRAGIA Butler, [1869], Proc. zool. Soc. Lond. 1868 (3) : 614. Type-species by 

 original designation : Adolias nesimachus Boisduval, [1846], in Cuvier, Regne anim. 

 (Disciples' ed.) 6 (vol. 4) : explic. pi. 139 bis. 



The collation and dating of the Disciples' edition of Cuvier's Regne Animal present consider- 

 able difficulties. The date here attributed to the name of the type-species was kindly fur- 

 nished by the late Dr. C. D. Sherborn, by whom it had been obtained from a copy of this work 

 preserved in the Departmental Library of the Palaeontological (at that time, the Geological) 

 Department of the British Museum (Natural History). 



DICHORRHAGIA Scudder, 1882, Nomencl. zool., Univ. Index : 97 (an Unjustified Emendation 

 of Dichorragia Butler, [1869]). 



DICOTHYRIS Karsch, 1893, Berlin, ent. Z. 38 : 203. Type-species by selection by Hemming 

 (1935, Stylops, 4 : 1) : Mycalesis sambulos Hewitson, [1877], III. exot. Butts 5 : [59], 

 pi. [32], figs 63, 64. 



DICRANASPES Scudder, 1882, Nomencl. zool. 1, Suppl. List : 107 ; ibid. 2, Univ. Index : 97 

 (an Unjustified Emendation of Dicranaspis Mabille, 1878). 



DICRANASPIS Mabille, 1878, Ann. Soc. ent. Belg. 21 : 24. Type-species by monotypy : 

 Papilio idas Cramer, [1779], Uitl. Kapellen 3 (22) : 118, pi. 260, figs A, B. 



The name Papilio idas Cramer is invalid under the Law of Homonymy. Up to the year 

 1954 this name was a junior homonym of the name Papilio idas Linnaeus, 1758 (Syst. Nat. 

 (ed. 10) 1 : 488), but in that year the latter name was suppressed by the Commission under its 

 Plenary Powers by the ruling given in its Opinion 269 (1954, Opin. int. Comm. zool. Nom. 

 6 : 1-24), the purpose of this action being to validate the slightly later nominal species 

 Papilio idas Linnaeus, 1761 (Faun. svec. (ed. 2) : 284). It is therefore this last name which 

 now invalidates the name Papilio idas Cramer, [1779], under the Law of Homonymy. The 

 name Papilio idas Cramer has not been objectively replaced by any later name, because 

 the taxon which it represents is subjectively treated currently on taxonomic grounds as being 

 the same as that represented by the later-established nominal species Papilio mercurius 

 Fabricius, 1787 (Mantissa Ins. 2 : 86). It is by this name that the present taxon is currently 

 known. 



