GENERIC NAMES OF BUTTERFLIES 233 



tinguished until 1832, was equally well known by the specific name feistliamelii {Papilio 

 feisthamelii Duponchel, 1832, in Godart, Hist. nat. Lepid. Fr., Suppl. 1 (Diurnes) : 7, 

 pi. 1, fig. 1 5)- In 1913 (/. linn. Soc. Lond., Zool. 32 : 174-175) Verity drew attention to the 

 fact that the sole syntype of Papilio podalirins preserved in the Linnaean collection in London 

 was a female, not of the European species always known as podalirius but of the North African 

 species Papilio feisthamelii and suggested that the name podalirius should be transferred to the 

 species known as feisthamelii. The adoption of this course would have had a most disturbing 

 effect on accepted nomenclature and would have been extremely confusing. Verity's paper 

 was accordingly deliberately ignored by systematists, who continued to use the specific names 

 podalirius and feisthamelii in the hitherto accepted sense. It was apparent however that at 

 some suitable time it would be necessary to ask the Commission to regularize the situation in 

 some suitable way. In 1945 an application on this case was submitted to the Commission in 

 this sense by the late Steven Corbet. The general purpose of this application was approved 

 by the Commission which decided that the best course would be to use its Plenary Powers to 

 designate as the lectotype of this nominal species one of the specimens described in one of the 

 works on European butterflies for which bibliographical references were cited by Linnaeus 

 in the original description of Papilio podalirius. The specimen selected by the Commission 

 was that described by Ray in 1710 (Hist. Ins. : III, no. 3), which Ray stated had been taken 

 near the port of Livorno in Tuscany ; at the same time the Commission designated the above 

 locality to be the " Restricted Locality " for this nominal species. The effect of these deci- 

 sions was definitely to confirm the specific name podalirius as the name for the European taxon 

 habitually so known, and to leave the name feisthamelii as the valid name for the Spanish & 

 North African taxon. This decision was promulgated in the Commission's Opinion 263, which 

 was published in 1954 (Opin. int. Comm. zool. Nom. 5 : 329-342). In the same Opinion 

 the specific names podalirius Linnaeus, 1758, and feisthamelii Duponchel, 1832 (both pub- 

 lished in combination with the generic name Papilio), were placed on the Official List of 

 Specific Names in Zoology as Names No. 77 and No. 78 respectively. 



IPHIMEDEIA Fruhstorfer, [1913], in Seitz, Grossschmett. Erde 5 : 335. Type-species by 

 selection by Hemming (1943, Proc. R. ent. Soc. Lond. (B) 12 : 25) : Papilio hercules Dalman, 

 1823, Analecta entom. : 40. 



IPHTHIMA Westwood, [1851], in Doubleday, Gen. diurn. Lep. (2) : pi. 67 (an Incorrect 

 Subsequent Spelling of Ypthima Hiibner, 1881). 



IPIDECLA Dyar, 1916, Proc. U.S. nat. Mus. 51 (No. 2139) : 1. Type-species by original 

 designation : Ipidecla miadora Dyar, 1916, ibid. 51 (No. 2139) : 2. 



IRAOTA Moore, [1881], Lep. Ceylon 1 (3) : 101. Type-species by monotypy : Hesperia 

 maecenas Fabricius, 1793, Ent. svst. 3 (1) : 271. 



The taxon represented by the nominal species Hesperia maecenas Fabricius is currently 

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

 established nominal species Papilio tomileon Stoll, [1790] (Aanhangs. Werk Uitl. Kapellen 

 Pieter Cramer : 146, pi. 32, fig. 4). 



IRATSUME Sibatani & Ito, 1942, Tenlhredo 3 (4) : 328. Type-species by original designation: 

 Thecla orsedice Butler, [April 1882], Proc. zool. Soc. Lond. 1881 (4) : 852. 



IRIDANA Aurivillius, [1921], in Seitz, Grossschmett. Erde 13 : 345. Type-species through 

 Section (i) (replacement names) of Article 67 : Iris incredibilis Staudinger, [1891], 

 Iris 4 (1) : 141. 



This name was introduced as a replacement for Iridopsis Aurivillius, [1898], which is invalid 

 under the Law of Ffomonymy. 



IRIDOPSIS Aurivillius, [1898], K. svenska VetenskAkad. Handl., Stockholm 31 (No. 5) : 

 254, 286. Type-species through Section (i) (replacement names) of Article 67 : Iris incredi- 

 bilis Staudinger, [1891], Iris 4 (1) : 141. 



Aurivillius introduced the name Iridopsis as a replacement for the name Iris Staudinger, 



