156 FRANCIS HEMMING 



oldest available generic name for the species placed in the genus Echenais by those who incor- 

 rectly regard Echenais leucophaea as its type-species is the name Adelotype Warren, 1895. 



ECHINARGUS Nabokov, 1945, Psyche 52 : 27. Type-species by original designation : 

 Lycaena isola Reakirt, 1866, Proc. Acad. nat. Sci. Philad. 1866 : 332. 



ECTIMA Doubleday, [November 1848], Gen. diurn. Lep. (2) : pi. 42, fig. 4. Type-species by 

 monotypy : Ectima iona Doubleday, Nov. 1848], ibid. (2) : pi. 42, fig. 4. 



Only the above species was cited on plate 42 on the first publication of the name Ectima and 

 that species is therefore the type-species of this genus by monotypy. The relevant portion of 

 the text ((1) : 227) was not published until July 1849 and it has therefore no bearing on the 

 question of the species to be accepted as the type-species, a matter which (as shown above) had 

 been settled by monotypy on the first publication of the name Ectima in December of the pre- 

 vious year. 



ECTOMIS Mabille, 1878, Ann. Soc. ent. Belg. 21 : 31. Type-species by monotypy : Ectomis 

 adoxa Mabille, 1878, ibid. 21 : 32. 



The taxon represented by the nominal species Ectomis adoxa Mabille, which was established 

 in July 1878, is currently identified subjectively on taxonomic grounds with the taxon 

 represented by the slightly older nominal species Plesioneuva cythna Hewitson, April 1878 

 [Ann. Mag. nat. Hist. (5) 1 : 340). 



EDALES Swinhoe, [1910], in Moore, Lep. ind. 8 (86) : 37. Type-species by original designa- 

 tion : Lycaena pandava Horsfield, [1829], Descr. Cat. lep. Ins. Mus. East India Coy (2) : 84. 



EDWARDSIA Tutt, [1907], Nat. Hist. Brit. Butts 2 : 142. Type-species by original designa- 

 tion : Papilio w-album Knoch, 1782, Beitr. Insektensch. 2 : 85, pi. 6, figs 1, 2. 



This generic name is invalid, being a junior homonym of Edwardsia Costa, 1838 (Fauna 

 Regno Napoli, Crust. Edwardsia 1) and also of Edwardsia Quatrefages, 1841 (L'Institut 

 1841 : 427). Later, this name was replaced by the name Chattendenia Tutt, [1908]. 



EETION de Niceville, 1895, /. Bombay nat. Hist. Soc. 9 (4) : 395. Type-species by original 

 designation : Hesperia elia Hewitson, [1866], Trans, ent. Soc. Lond. (3) 2 : 489. 



EGIALEA Hemming, 1964, Annot. lep. (4) : 145. Type-species by original designation : 

 Papilio damocles Fabricius, 1793, Ent. syst. 3 (1) : 41 (a taxon which through the lecto- 

 type-selections made by Hemming, 1964, Annot. lep. (3) : 90) is objectively identical with the 

 nominal species Papilio egialea Cramer, [1777] (Uitl. Kapellen 2 (16) : 146, pi. 192, fig. D), the 

 name of which through a First Reviser choice made by Hemming (1964, Annot. lep. (4) : 87) 

 is invalid under the Law of Homonymy. 



The present genus was established for what Aurivillius ([191 1], in Seitz, Grossschmett. 

 Erde 13 : 74-76) called the " Egialea Group " of the genus Amauris Hiibner, 1816. This was 

 the only one of the groups so recognized by Aurivillius which had not already been recognized 

 by earlier authors as constituting a separate genus. 



Other things being equal it would have been natural to designate as the type-species of this 

 genus the nominal species Papilio egialea Cramer, in view of the fact that the specific name of 

 that species had formed the eponym of the group recognized by Aurivillius. At this point 

 there arose an inseparable objection to the adoption of this course ; this was the discovery that 

 through some hitherto undetected inadvertence Cramer had given the name Papilio egialea to 

 two entirely different species in the same Part (Part 16) of his Uitl. Kapellen. These species 

 were figured on Cramer's plate 189, figs D, E (: 141) and plate 192, fig. D (: 146) respectively. 

 As already noted, the species represented on plate 192 is the African Amaurid here in question ; 

 that represented on plate 189 is however a Pierid belonging to the genus Delias Hiibner. The 

 question as to which of these names should be given precedence over the other depends on the 

 choice made by the First Reviser. At the time when I first had occasion to consider this 

 matter no such choice had been made. I therefore considered which of these names it was the 

 more important should be preserved in the interests of nomenclatorial stability. The position 

 was found to be (a) that there was no synonym available to replace the name egialea Cramer, as 



