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2020.12.1 Metamorphosis 31.1 129-131 Libert Liptenini.Pdf Volume 31(1): 129–131 METAMORPHOSIS ISSN 1018–6490 (PRINT) ISSN 2307–5031 (ONLINE) LEPIDOPTERISTS’ SOCIETY OF AFRICA Taxonomic notes on some Liptenini (Lepidoptera: Lycaenidae: Poritiinae) Published online: 1 December 2020 Michel Libert 8, rue Henry Barbet, 7600 Rouen, France. Email: [email protected] Copyright © Lepidopterists’ Society of Africa Abstract: The status of five species of Liptenini is revised: Liptena decempunctata Schultze, 1923 is transferred to the genus Tetrarhanis Karsch, 1893 (comb. nov.), and Tetrarhanis souanke (Stempffer, 1962) is synonymised with T. decempunctata (Schultze, 1923) (syn. nov.); Liptena mwagensis Dufrane, 1953 is transferred to the genus Micropentila Aurivillius, 1895 (comb. nov.); Liptena sauberi Schultze, 1912 is synonymised with L. modesta (Kirby, 1890) (syn. nov.), and Liptena yukadumae Schultze, 1917 is synonymised with L. tricolora (Bethune-Baker, 1915) (syn. nov.); the synonymy of Pentila occidentalis Bethune-Baker, 1926 with Kakumia ferruginea (Schultze, 1923) is confirmed. Key words: Lepidoptera, Lycaenidae, Poritiinae, Liptenini, taxonomy, synonymy, Africa, Afrotropical region. Citation: Libert, M.. 2020. Taxonomic notes on some Liptenini (Lepidoptera: Lycaenidae: Poritiinae). Metamorphosis 31(1): 129‒131. INTRODUCTION compared decempunctata to Liptena nubifera Druce, 1910, which has subsequently been moved to the genus During the study of some groups of Liptenini genus Tetrarhanis Karsch, 1893. The description included a Liptena (Libert, 2018, 2020, Libert & Collins, 2018), hand-drawing by Schultze, which showed that the several new species were described. It has become underside of the female of decempunctata has all the necessary to ascertain whether any of these new species characters of the genus Tetrarhanis. More precisely, it is were identical to one or the other of the few Liptena very similar to that of T. souanke (Stempffer, 1962), species whose identification remains problematic. which Stempffer placed in the group of T. nubifera, and Investigations that were carried out on five taxa of whose type-locality is Sembé (district of Souanké), in the disputed status show that two taxa must be transferred into north of the Congo, about one hundred kilometers south- genera different from those in which they were described, west of Moloundou. and that three synonymies must be recognised. It is therefore determined that souanke is a synonym of TAXONOMIC CHANGES decempunctata (syn. nov.), but the latter must obviously be placed in the genus Tetrarhanis, and in accordance Tetrarhanis decempunctata (Schultze, 1923), comb. with article 31.2.1 of the Code of Nomenclature, it nov. becomes Tetrarhanis decempunctata (Schultze, 1923) (comb. nov.). The male holotype of Tetrarhanis souanke Liptena decempunctata Schultze, 1923. In Schultze & is chosen as the neotype of T. decempunctata: Aurivillius, 1923. Ergebnisse der Zweiten Deutschen Zentral-Afrika Expedition 1910–1911 1 (17): 1187. Neotype: ♂ Sembé, district de Souanké, Congo, II.1960 Liptena decempunctata Schultze, 1923 s. Stempffer (T. H. E. Jackson) ; Natural History Museum, London. (1967: 541), Ackery et al. (1995: 506), d’Abrera (2009: 652), Williams (2019). Micropentila mwagensis (Dufrane, 1953), comb. nov. = Tetrarhanis souanke (Stempffer, 1962), syn. nov. (Fig. 1) The description of Liptena decempunctata was based on a Liptena mwagensis Dufrane, 1953. – Lépidoptères du male and a female collected in south-eastern Cameroon Kivu (5e note). Bulletin et Annales de la Société (Moloundou and Boënga). These specimens were entomologique de Belgique, 89 (I-II) : 49. deposited in the Hamburg museum and were Liptena mwagensis Dufrane, 1953 s. Stempffer (1967: unfortunately destroyed by the bombing of the city during 54), Ackery et al. (1995: 508), d’Abrera (2009: 652), the Second World War. In his description, Schultze Williams (2019). Received: 12 August 2020 The description of Liptena mwagensis was based on a Published: 1 December 2020 single female collected on the Mwago Plateau Copyright: This work is licensed under the Creative Commons (8 km south of Mwega), in eastern Democratic Republic Attribution-NonCommercial-NoDerivs 3.0 Unported License. To of Congo2 (hereafter referred to as DRC). view a copy of this license, send a letter to Creative Commons, Second Street, Suite 300, San Francisco, California, 94105, USA, or visit: http://creative commons.org/licenses/by-nc-nd/3.0/ 1 According to d’Abrera (2009: 652), Stempffer (1957: 65) description of T. souanke, Stempffer does not mention ‘claims that this taxon is closely related to Tetrarhanis nubifera decempunctata. Druce’, which it has not been possible to verify; in his 2 However, Berger (1981) does not mention mwagensis. Libert / Metamorphosis 31(1): 129‒131 130 Dufrane (1953) placed mwagensis near Liptena modesta The description of Liptena sauberi is based on a male and (Kirby, 1890), whilst acknowledging that it "bears little a female collected in south-eastern Cameroon (Yokaduma resemblance to it". The description, especially the shape and Dalugere); these specimens were also deposited in the of the spot on the hindwing upperside, suggests that Hamburg museum and were unfortunately destroyed by mwagensis probably belongs to the genus Micropentila the bombing of the city during the Second World War. Aurivillius, 1895. Stefan Kerkhof found the type of They are not illustrated in the description, but a male and Liptena mwagensis among specimens of the genus a female of Liptena sauberi are represented in Schultze & Micropentila in the collection of the Royal Belgian Aurivillius [1923, plate XLIX, fig. 6a (♂) and 6b (♀)], and Institute of Natural Sciences (Brussels), and the pictures it can be assumed that Schultze's specimens were used for that he kindly sent confirm that mwagensis actually the illustrations4. belongs to this genus (Fig. 1). The female does not differ in any way from several females of L. modesta (Kirby, 1890) from Cameroon in the author’s collection, but the male is curious... if it is really a male. Indeed, the specimen looks more like a female, also of L. modesta, but with a more or less aberrant upper side (especially the deeply indented outer edge of the hindwing orange band, but also the forewing orange band extending more towards the outer edge of the wing). Figure 1 – Liptena mwagensis Dufrane: Holotype ♀ A: recto; B: verso. If this specimen were really a male, it could not be related to any described Liptena species, and would consequently The (female) type of (Liptena) mwagensis is not very represent a distinct, new, species. This both underlines the different from the female allotype of Micropentila necessity to designate one of the two syntypes as a fontainei Stempffer & Bennett, 1965, collected in the lectotype and shows that it would not be wise to select the type-locality (Katako-Kombe, central DRC), and a long male. The female is therefore selected, and it follows that series of M. fontainei from NE DRC in the collection of sauberi is a synonym of modesta (syn. nov.). Robert Ducarme shows that the variability of this species is important. It is therefore probable that fontainei is a Liptena tricolora (Bethune-Baker, 1915) synonym of mwagensis, but it is preferable to examine the Pentila tricolora Bethune-Baker, 1915. Descriptions of genitalia to make sure that the two species do not fly in new species of Lepidoptera from Africa and the East. north east DRC before establishing the synonymy. Both Annals and Magazine of Natural History, 8 (16): 188. taxa are also very similar to M. galenides (Holland, 1895), Liptena tricolora (Bethune-Baker, 1915) s. Stempffer another valid species3 despite the doubts of Ackery et al. (1967: 55), Ackery et al. (1995: 510), d’Abrera (2009: (1995: 516), of which M. mwagensis, or perhaps M. 650), Williams (2019). fontainei, could be the eastern vicariant. = Liptena yukadumae Schultze, 1917, syn. nov. Liptena modesta (Kirby, 1890) Liptena yukadumae Schultze, 1917 s. Stempffer (1967: 56), Williams (2019); Teriomima modesta Kirby, 1890. Descriptions of new Liptena yakadumae Schultze, 1917 s. Ackery et al. (1995: West African Lycaenidae. Annals and Magazine of 510), d’Abrera (2009: 652). Natural History, 6 (6): 270. Liptena modesta (Kirby, 1890) s. Stempffer (1967: 55), The description of Liptena yukadumae was based on a Ackery et al. (1995: 507), d’Abrera (2009: 651), Williams single male collected near Yokaduma, in south-eastern (2019). Cameroon; this male was also deposited in the Hamburg = Liptena sauberi Schultze, 1912, syn. nov. museum and was unfortunately destroyed by the bombing Liptena sauberi Schultze, 1912 s. Stempffer (1967: 54), of the city during the Second World War. It is not Ackery et al., (1995: 509), for whom sauberi could illustrated in the original description, but it is represented however be a synonym of modesta Kirby, d’Abrera (2009: in Schultze & Aurivillius [1923, plate XLIX, fig. 5], 650), Williams (2019). which shows that its underside, especially on the hindwings, is hardly different from that of the type female The type of Liptena modesta is a male from the Staudinger of Liptena tricolora (Bethune-Baker, 1915), which is collection collected by Preuss, i.e. in western Cameroon depicted by d’Abrera (2009: 651). (Museum für Naturkunde, Berlin). Larsen (2005: 149) suggests that modesta is probably a subspecies of Liptena It is therefore most likely that the male of L. tricolora, helena (Druce, 1888); this approach is adopted by Libert which has not yet been observed, is none other than the
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