290 FRANCIS HEMMING 



METISELLA Hemming, 1934, Stylops 3 : 99. Type-species by original designation : Papilio 

 metis Linnaeus, 1764, Mus. Lud. Ulr. : 325. 



Scudder in 1875 (Proc. amer. Acad. Arts Sci., Boston 10 : 150) selected Papilio metis Linn- 

 aeus to be the type-species of the genus Cyclopides Hubner, [1819], but this action was invalid, 

 since by selection by Butler (1870, Ent. mon. Mag. 7 : 96) an entirely different species (Papilio 

 steropes [Denis & Schiffermuller], 1775) was already the type-species of that genus. This 

 misusage was followed by subsequent authors, Watson in 1893 (Proc. zool. Soc. Lond. 1893 : 90) 

 providing a diagnosis for this genus under the erroneous name Cyclopides. The genus remained 

 without an available name until in 1934 I established the nominal genus Metisella, based on the 

 characters provided by Watson in 1893. 



METROCLES Godman, [1900], in Godman & Salvin, Biol, centr.-amer., Lep. Rhop. 2 : 558. 

 Type-species by monotypy : Metrocles leucogaster Godman, [1900], in Godman & Salvin, 

 ibid., Lep. Rhop. 2 : 559, pi. 100, figs 8, 9 g. 



METRON Godman, [1900], in Godman & Salvin, Biol, centr.-amer., Lep. Rhop. 2 : 557. 

 Type-species by monotypy : Pamphila chrysogastra Butler, 1870, Trans, ent. Soc. Lond. 

 1870 : 505. 



METURA Butler, 1873, Lep. exot. : 155. Type-species by selection by Scudder (1875), Proc. 

 amer. Acad. Arts Sci., Boston 10 : 218 : Callidryas bracteolata Butler, 1865, Proc. zool. Soc. 

 Lond. 1865 (2) : 458, pi. 26, fig. 6. 



The taxon represented by the nominal species Callidryas bracteolata Butler is currently 

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

 older-established nominal species Colias neocypris Hubner, [1823] (Samml. exot. Schmett. 2 : 

 pi. [136]). There is an older nominal species which is currently considered subjectively as 

 representing the above taxon, but the name (Papilio cipris Fabricius, 1793) of that nominal 

 species is invalid, as it is a junior homonym of the name (Papilio cipris Cramer, [1777]) of an 

 older-established nominal species. 



The name Metura Butler is invalid, as it is a junior homonym of the older name Metura 

 Walker, 1855 (List Spec. lep. Ins. Brit. Mus. 4 : 961). 



MEZA Hemming. 1939, Proc. R. ent. Soc. Lond. (B) 8 : 39. Type-species by original designa- 

 tion : Hesperia meza Hewitson, 1877, Ann. Mag. nat. Hist. (4) 19 : 79. 



On observing that the generic name Gastrochaeta Holland, 1894, was invalid under the Law 

 of Homonymy, I decided, in agreement with the late W. H. Evans, that the publication of an 

 avowed replacement name would be undesirable, for, if that course were to be taken, the genus 

 bearing the replacement name would, like Gastrochaeta, have as its type-species the rare and 

 little-known species Gastrochaeta mabillei Holland, 1894. We decided therefore that the best 

 course would be to establish a new nominal genus expressly based on the characters given by 

 Holland on the second occasion on which he dealt with that genus (that is in 1896, Proc. zool. 

 Soc. Lond. 1896 (1) : 37) and to designate as the type-species some better-known species 

 exhibiting the same generic characters as those found in Gastrochaeta mabillei. It was in 

 accordance with the arrangement so agreed upon that I established the nominal genus Meza, 

 having as its type-species the well-known species Hesperia meza Hewitson, 1877. 



MICANDRA Staudinger, [1888], in Staudinger & Schatz, Exot. Schmett., Bd 1 (Th. 1) (21) : 288. 

 Type-species by monotypy : Pseudolycaena platyptera Felder (C.) & Felder (R.), [1865], 

 Reise Fregatte " Novara ", Lep. Rhop. (2) : 246, pi. 28, figs 6, 7. 



In addition to placing the above species in this genus Staudinger doubtfully associated a 

 second species (sapho Staudinger) with this genus. As a species incertae sedis, the last- 

 mentioned species is, under Article 67(h), ineligible to become the type-species of this genus, of 

 which therefore Pseudolycaena platyptera is the type-species by monotypy. 



Four years later ([1892], in Schatz, in Staudinger & Schatz, loc. cit. Bd 1 (Th.2) (6) : 263, 265) 

 Rober, apparently unaware of Staudinger 's action in 1888, republished the name Micandra, 

 stating that Pseudolycaena platyptera was the sole species of the genus so named. 



