Five new species of the genus Meganaclia Aurivillius, 1892 (Lepidoptera: Erebidae: Arctiinae: Syntomini) Author Ignatev, Nikolai 0000-0002-3611-8022 Museum Witt, Max-Reger-Strasse 18, 92637 Weiden in der Oberpfalz, Germany. n. ignatev @ entu. cas. cz & Institute of Entomology, Biology Centre CAS and the Faculty of Sciences, University of South Bohemia, Branišovska 31, 370 05, České Budějovice, the Czech Republic. fric @ entu. cas. cz; https: // orcid. org / 0000 - 0002 - 3611 - 8022 fric@entu.cas.cz Author László, Gyula M. 0000-0001-9862-8290 African Natural History Research Trust, Street Court, Kingsland, Leominster, Herefordshire, HR 6 9 QA, United Kingdom. gyulalaszlo @ anhrt. org. uk; https: // orcid. org / 0000 - 0001 - 9862 - 8290 gyulalaszlo@anhrt.org.uk Author Paśnik, Anna 0000-0002-2974-0817 Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Sławkowska 17, 31 - 016 Krakow, Poland. anprz @ wp. pl; https: // orcid. org / 0000 - 0002 - 2974 - 0817 anprz@wp.pl Author Fric, Zděnek Faltýnek 0000-0002-3611-8022 Institute of Entomology, Biology Centre CAS and the Faculty of Sciences, University of South Bohemia, Branišovska 31, 370 05, České Budějovice, the Czech Republic. fric @ entu. cas. cz; https: // orcid. org / 0000 - 0002 - 3611 - 8022 fric@entu.cas.cz Author Sulak, Harald 0000-0002-8138-3538 Museum Witt, Max-Reger-Strasse 18, 92637 Weiden in der Oberpfalz, Germany. n. ignatev @ entu. cas. cz & h. sulak @ atelier-sulak. de; https: // orcid. org / 0000 - 0002 - 8138 - 3538 h.sulak@atelier-sulak.de Author Müller, Günter C. University of Sciences, Techniques and Technology of Bamako, BP 1805, Bamako. text Zootaxa 2023 2023-05-29 5296 3 457 474 http://dx.doi.org/10.11646/zootaxa.5296.3.8 journal article 53502 10.11646/zootaxa.5296.3.8 1747fcf9-03c3-4487-a857-1887589b1f49 1175-5326 7984227 BEB15724-28FC-4D5B-9030-EFEFF797DB94 Meganaclia sippia ( Plötz, 1880 ) ( Figs 1 , 15 , 21 , 32 , 38 ) Naclia sippia Plötz, 1880 , Plötz C. 1880. Verzeichniss der vom Prof. Dr. R. Buchholz in West–Afrika gesammelten Schmetterlinge. Stettiner Entomologische Zeitung 41: 76–88, 298–307. Type locality: [ Cameroon ] Cameroons Gebirge [mountain]. Syntypes , 4♁ (coll. ZIMG). Type material examined. Lectotype (designated herein). ♁, “ Cameroon Mountains, W Africa, leg. R. Buchholz “, gen. slide No. P 316 ( ZIMG ). Additional material examined. DRC . 1♁, Coll. Mus. Congo , Sankuru : Katako–Kombe , 12.x.1952 , Dr M. Fontaine , gen. slide No. P 317 ( RMCA ) . Liberia . 1♁, Grand Gedeh , County , Putu Range , 19–31.xii.2011 , leg. Sáfián, Sz. , Zakar, E. , gen. slide No. S 476 ( ISEA PAS ) . Sierra Leone . 1♁, Malema District , Mogbaima near Moro River , 18–22.i.2011 , leg. Sáfián, Sz. , gen. slide No. S 477 ( ISEA PAS ) . FIGURES 1–11. Adults of Meganaclia Aurivillius, 1892 species. 1 . Meganaclia sippia , lectotype ♁ of Naclia sippia Pl ̂tz, 1880 Cameroon (ZIMG); 2. M. smithi sp. n. , holotype ♁, Uganda (ANHRT); 3. M. smithi sp. n. , paratype ♀, Uganda (SMNS); 4. M. grehani sp. n. , holotype ♁, Guinea (MWW); 5. M. grehani sp. n. , paratype ♀, Guinea (CHS); 6. M. josephi sp. n. , holotype ♁, Guinea (MWW); 7. M. josephi sp. n. , paratype ♀, Liberia (ANHRT); 8. M. johannae sp. n. , holotype ♁, Guinea (MWW); 9. M. johannae sp. n. , paratype ♀, Guinea (CHS); 10. M. gaerberfesti sp. n. , holotype ♁, Republic of Congo (MWW); 11. M. gaerberfesti sp. n. , paratype ♀, Republic of Congo (MWW). Diagnosis. The habitus of male adult M. sippia is highly reminiscent of M. grehani sp. n. due to the similarly pale brownish-grey colouration and large hindwing spots, but clearly differs from it by the lighter coloration of the antenna. Nevertheless, examination of the male genital morphology is required for the reliable identification of the species. In the male genitalia, M. sippia differs from all other taxa of the genus by the longest dorsal and ventral projections of the C-shaped uncus lacking sclerotized dorsal appendages ( Fig. 15 ) but bearing two short, membranous humps covered sparsely by short setae. The sclerotized costal margin of the valva is narrower than in other species of the genus, gently concave in basal two-thirds (it is straight, convex or undulate in the other congeners), its distal third abruptly tapered and curved ventrad ending in a pointed apex, whereas the distal tapered section of the valva costa is considerably longer in the other Meganaclia species. The sacculus of M. sippia has the shortest, and least sclerotized, broad-based triangular plate in the genus ( Figs 21 , 32 ). In 1955 Kiriakoff described the female genitalia structures of M. sippia collected in Sankuru, Katako-Kombe. However, neither the simplified description nor the extremely schematic drawing given in the paper are informative enough for using them for the identification of females of M. sippia , and rather are appropriate only for characterizing the female reproductive organs of the genus in general.