Fifth contribution to the study of the Lithosiini of Gabon: two genera new for Gabon, with a description of two new species (Lepidoptera: Erebidae: Arctiinae) Author Durante, Antonio Museo di Storia naturale del Salento. S. P. Calimera-Borgagne, Km 1, 73021 Calimera, Italy. Author Apinda-Legnouo, Emelie Arlette Institut de Recherches sur l’Écologie Tropicale, Libreville, Gabon. text Zootaxa 2022 2022-01-14 5091 3 416 428 journal article 2588 10.11646/zootaxa.5091.3.2 f6fc2fe0-6f9c-48cf-b252-e49db45b4a98 1175-5326 5848281 57DE1453-41B1-43B2-9B9E-B72BDA973208 Novilema fluminale Durante & Panzera, 2001 ( Figs. 7, 8 ) Material . GABON : 2 ♂♂ , Ipassa (Makokou), 0°30’43’’N 12°48’13’’E , 4/ 13-12-2017 , Durante leg., g. sl. n. 1000 MAD and 1012 MAD ; 1 ♂ , same locality, 16/ 21-6-2021 , Durante and Fasiello leg., g. sl. n. 1027 MAD . FIGURES 1–8. Lithosiini spp.: adults. 1, Pusiola unicolor n. sp. —holotype male. Gabon, Ivindo National Park. 2, ditto— paratype, male. Gabon, Ivindo National Park. 3, ditto— paratype, female. Gabon, Ivindo National Park. 4, ditto— paratype, female. Gabon, Ivindo National Park. 5, Pusiola celida —male. Gabon, Mondah forest. 6, Novilema bifurcum n. sp. —holotype, male. Gabon, Ivindo National Park. 7, Novilema fluminale —male. Gabon, Ivindo National Park. 8, ditto— male. Gabon, Ivindo National Park. FIGURE 9. Pusiola unicolor n. sp. —A: central segment of the antennal flagellum, male; B: central segment of the antennal flagellum, female; C: dorsal pheromone gland; D: acrosternite; E: forewing venation; F: hindwing venation. A: anal vein; co: coremata; CuA: Anterior cubital vein; dp: dome-shaped projections; M: median vein; pg: dorsal pheromone glands; R: radial vein; Rs: radial sector vein; Sc: subcostal vein; VIII st: eighth sternum. FIGURE 10. Pusiola unicolor n. sp. —A–D: male genitalia. A: processus distalis plicae, enlarged; B: genitalia, aedeagus removed; C: aedeagus, vesica everted; D: granicula of the vesica, enlarged. E–H: female genitalia. E: genitalia; F: enlarged spicule of the antrum; G: enlarged spicule of the foremost part of the corpus bursae; H: enlarged spicule of the medio-caudal part of the corpus bursae. aa: anterior apophyses; ab: appendix bursae; ae: aedeagus; an: antrum; ap: posterior apophyses; av: ala valvae; cb: corpus bursae; cp: coecum penis; dl: distal lobus; fs: dorsal flat sclerotization of the aedeagus; gr: granicula; ju: juxta; pa: papillae anales; pav: distal process of the ala valvae; pd: processus distalis plicae; pe: pedunculi; pg: dorsal pheromone glands; sa: saccus; sv: supravalva; te: tegumen; un: uncus; ve: vesica; vi: vinculum; VII st: seventh sternum; VIII st: eighth sternum; vl: ventral lobus. FIGURE 11. Novilema bifurcum n. sp. —A–D: male genitalia. A: genitalia, aedeagus in situ; B: Uncus, socius and terminal portion of the juxta, enlarged; C: aedeagus, vesica everted, enlarged; D: granicula of the vesica, enlarged. ae: aedeagus; av: ala valvae; cr: cornuti; gr: granicula; ju: juxta; pav: distal process of the ala valvae; so: socius; sv: supravalva; te: tegumen; un: uncus; tr: transtilla; ve: vesica; vi: vinculum; VIII st: eighth sternum. Remarks . This species was described on the basis of eight male specimens from south Nigeria . The specimens from Gabon considerably enlarge its range of distribution. No female was collected (the supposed discovery of a female suggested by Krüger (2015) is dealt with in the discussion). Genitalia are figured in Durante & Panzera (2001b) .