A revision of the genus Poeonoma Tams & Bowden (Lepidoptera: Noctuidae: Apameini: Sesamiina) with the description of a new genus and two new sesamiine species from the Afrotropical region

The genus Poeonoma Tams & Bowden, 1953 is revised to include two species P. serrata (Hampson, 1910) and P. ugandensis Le Ru n. sp., from the Congolian bioregion. Several new synonyms are introduced for Poeonoma serrata: Conicofrontia sjoestedti Aurivillius, 1925 n. syn. for Poeonoma serrata (Hampson, 1910), Poeonoma similis Tams & Bowden, 1953 n. syn. for Poeonoma serrata (Hampson, 1910), and Poeonoma nigribasis Laporte, 1974 n. syn. for Poeonoma serrata (Hampson, 1910). A new genus, Nyaluteme Le Ru n. gen., is proposed for two species formerly included in Poeonoma, N. acantha (Tams & Bowden, 1953) n. comb. and N. inermis (Laporte, 1973) n. comb., and N. nigra Le Ru n. sp., described from the Congolian bioregion. Host-plants for three of the species are recorded: Pennisetum purpureum Schumach. for P. serrata and P. ugandensis, and Miscanthus violaceus (K. Schum) Pilg. for N. nigra. A key to species, descriptions, illustrations of adults and genitalia, and distribution maps are included. Results of previously published phylogenetic analyses also allow the status of the new genus to be confirmed and to infer the phylogenetic placement of the two genera.本研究对1953年由Tams与Bowden发表的Poeonoma属（Poeonoma Tams & Bowden, 1953）开展分类修订，该属现包含2个物种：锯齿Poeonoma（P. serrata (Hampson, 1910)）以及产自刚果生物地理区的乌干达Poeonoma（P. ugandensis Le Ru，新种）。 本研究为锯齿Poeonoma（P. serrata (Hampson, 1910)）确立了3个新同物异名：Conicofrontia sjoestedti Aurivillius, 1925（新同物异名）、Poeonoma similis Tams & Bowden, 1953（新同物异名）以及Poeonoma nigribasis Laporte, 1974（新同物异名）。 本研究提出1个新属——Nyaluteme Le Ru，新属（Nyaluteme Le Ru n. gen.），该属包含原隶属于Poeonoma属的2个物种：棘状Poeonoma（N. acantha (Tams & Bowden, 1953)，新组合）、无棘Poeonoma（N. inermis (Laporte, 1973)，新组合），以及产自刚果生物地理区的黑色Nyaluteme（N. nigra Le Ru，新种）。 本研究记录了其中3个物种的寄主植物：锯齿Poeonoma与乌干达Poeonoma的寄主为象草（Pennisetum purpureum Schumach.），黑色Nyaluteme的寄主为紫芒（Miscanthus violaceus (K. Schum) Pilg.）。 本研究包含该类群的分种检索表、物种形态描述、成虫及外生殖器插图，以及分布范围图。 既往发表的系统发育分析结果，不仅证实了该新属的分类地位，还明确了这两个属的系统发育归属。