Aculeus apenninus (Druce, 1905) Druce, H. (1905). Descriptions of some new species of Syntomidae and Arctiadae from tropical South America. Annals and Magazine of Natural History (7) 15: pp. 460-461. (Described as Cosmosoma apennina.) Cosmosoma apennina, sp. n. Male.--Head, antennae, and palpi black; collar and tegulae yellow, thorax black; abdomen yellow, banded with black; anus and legs black. Primaries hyaline, the apex black; a wide yellow hyaline band crosses the wing between the end of the cell and the apex: secondaries hyaline, the apex black.--Female identical with the male. Expanse 1 inch. Hab. S.E. Peru, Santo Domingo, 6000 feet (Mus. Druce). Hampson, G. F. (1914). Catalogue of the Lepidoptera Phalaenae in the British Museum, Supplement vol. 1: pp. 158-159, pl. VIII fig. 15. (As Cosmosoma apennina.) 507 a. Cosmosoma apennina. Cosmosoma apennina, Druce, A. M. N. H. (7) xv. p. 460 (1905). Head black; frons white with black spot; palpi at base and gulae orange; thorax orange, the patagia above and at extremity and spots on pro-, meso-, and metathorax black; legs black and orange; abdomen orange with dorsal and ventral black bands and lateral spots, the extremity black. Fore wing hyaline, the veins and margins black; a small orange patch at base and slight streak below basal part of costa; the postmedial part of costa orange; orange streaks on vein 6, in discal fold, and on vein 5 from just beyond cell and on terminal parts of veins 4, 3; the terminal band expanding widely at apex and slightly at tornus. Hind wing hyaline, the veins and margins black; a little orange at base and the hair on inner margin orange; the terminal line expanding into a moderate apical patch. Hab. S.E. Peru, St. Domingo, 6000 ft. (Ockenden), 5 ♂ cotype. Exp. 30 millim. Draudt, M. (1915). Cosmosoma. In: Seitz, A. (ed.), The Macrolepidoptera of the World, vol. 6, The American Bombyces and Sphinges: p. 81. (As Cosmosoma apenninum; not figured.) C. apenninum Druce is an easily recognizable species. Head, antennae and palpi black, collar and neck yellow, thorax black. Abdomen yellow, black-curled, anus black. Legs black. Forewing hyaline with a black apex; a broad, yellow, hyaline band extends from the cell-end to the apex. South East Peru.