Second contribution to the knowledge of the Lithosiini of Gabon: the genus Nanna Birket-Smith (Lepidoptera, Erebidae, Arctiinae) Author Durante, Antonio EE002752-B8CA-40FA-A6B2-02B46375D850 Museo di Storia naturale del Salento. Via Europa 95, 73021 Calimera, Italy Email: antonio. durante @ msns. it (corresponding author) & urn: lsid: zoobank. org: author: EE 002752 - B 8 CA- 40 FA-A 6 B 2 - 02 B 46375 D 850 Author Apinda-Legnouo, Emelie Arlette BC3E3E0E-D9C9-4664-AE16-709F8DA33D8F Institut de Recherches sur l’Écologie Tropicale, Libreville, Gabon Email: ea. apindalegnouo @ yahoo. fr & urn: lsid: zoobank. org: author: BC 3 E 3 E 0 E-D 9 C 9 - 4664 - AE 16 - 709 F 8 DA 33 D 8 F Author Romano, Chiara A882257F-26A4-4493-8522-B1E22561E933 Viale Santa Caterina Novella 26, 73013 Galatina, Italy Email: chiararomano @ virgilio. it & urn: lsid: zoobank. org: author: A 882257 F- 26 A 4 - 4493 - 8522 - B 1 E 22561 E 933 text European Journal of Taxonomy 2013 2013-11-22 65 1 15 journal article 22238 10.5852/ejt.2013.65 d2b69f13-1f9c-4249-9c5a-487930339084 2118-9773 3820726 1A278230-80B9-487E-AF3D-72D22D7B6B7F Nanna eningae ( Plötz, 1880 ) Figs 3 C-F, 4B, 5B Gnophria eningae Plötz, 1880: 80 . Eilema eningae var. pia Strand, 1912: 99-100 . Nanna montana Birket-Smith, 1965: 44-45 ; synonymized by Kühne (2005) . Ilema eningae – Hampson 1900: 156 . Nanna pia – Birket-Smith 1965: 43-44 ; synonymized by Kühne (2005) . Type material Holotype , ♀ , ZIM ., only the picture examined. Type locality W. Africa, Eningo [ Ivory Coast ], 13 Jun. 1875 , leg. R. Buckholz. Other material examined GHANA : Ashanti , Bobiri, 1 ♂ , 25 May 2011 . D .R.C: Eala, 1 ♂ , Oct. 1936 ; Sankuru, 1 ♂ , 25 Nov. 1951 . NIGERIA : Odi, 1 ♂ , 30-31 May 1997 . GABON : Makokou-Ipassa, 500 m , 0°30’43’’N , 12°48’13’’E , 17 ♂♂ , 5 ♀♀ , 5-10 Apr. 2010 ; 3 ♂♂ , 19 Feb.-11 Mar. 2011 ; 3 ♂♂ 16-28 Feb. 2012 ; MSNS and MAD . Distribution Ivory Coast ( type locality, Plötz 1880 ); Ghana (RMCA coll.); Togo ( Strand 1912 ); Nigeria (Birket- Smith 1965; Durante & Panzera 2001 ); Cameroon ( Strand 1912 ; Birket-Smith 1965 ); DRC (RMCA coll.); Gabon (new locality). Remarks Kühne (2005) synonymized Nanna montana and N. eningae var. pia with N. eningae based on the variability of the wing colour and the colour pattern of N. eningae (see Kühne 2007: 354 ), and on comparisons with the type of N. eningae ( Kühne 2007: 354 ) , disregarding the male genitalic differences described by Birket-Smith between N. montana and N. pia . They were probably considered to represent only a minor intraspecific variability. According to Birket-Smith (1965: 43 , 47), the types of N. eningae and N. pia were untraceable, but Kühne (2005) explained that he was able to compare his specimens of N. eningae and N. pia with the types in the Plötz collection. However, Kühne (2007) admitted to the possibility that the N. eningae -group is composed of several taxa, but he did not go further into this matter. Durante & Panzera (2001) did not provide clear distinctive characters for lack of material and classified a single specimen from Nigeria as N. montana , based on male genitalic morphology. In this respect, it should be remarked that one specimen from Ghana (RMCA collection) shows all the characteristics described by Birket-Smith (1965) about N. pia , leading to the conclusion that the variability between N. pia ( eningae ) and N. montana could be concrete. At present, although the examined series from Gabon does not show any genitalic variability within itself (in contrast with the above supposed “minor intraspecific variability”), the conclusions of Kühne (2005) are here cautiously accepted, since the synonymy can be supported by the similarity of the Gabonese female genitalia with the ones of N. pia figured in Birket-Smith (1965) and the similarity of Fig. 4. Male genitalia. Figures are not in equal proportion; the aedeagus, on the right, is enlarged. A . Nanna ceratopygia Birket-Smith, 1965 , ♂, Gabon, Makokou-Ipassa, 500 m, 0°30’43’’N 12°48’13’’E, 19 Feb.-11 Mar. 2011, gen. prep. nov. 729/13 MAD. B . Nanna eningae ( Plötz, 1880 ) , ♂, Gabon, Makokou-Ipassa, 500 m, 0°30’43’’N 12°48’13’’E, 19 Feb.-11 Mar. 2011, gen. prep. n. 697/12 MAD. C . Nanna semigrisea sp. nov. , ♂ paratype, Gabon, Makokou-Ipassa, 500 m, 0°30’43’’N 12°48’13’’E, 19 Feb.-11 Mar. 2011., gen. prep. n. 698/12 MAD. Arrows: a = ventral sclerotization of the basis valvae; b = processus basalis plicae; c = distal sclerotized bar. s = tha moderate swelling in the vesica. 1-4 = lobes of the vesica. D . Nanna molouba sp. nov. , ♂ paratype, Gabon, Makokou-Ipassa, 500 m, 0°30’43’’N 12°48’13’’E, 5-10 Apr. 2010, gen. prep. n. 562/10 MAD. the Gabonese male genitalia with the ones of N. montana , both figured in Birket-Smith (1965) and in Durante & Panzera (2001) , in addition to the existing wing colour variability (see Fig. 3E ).