Review of the genus Trogoderma from Madagascar (Coleoptera: Dermestidae: Megatominae)

Trogoderma sambiranum sp. n., T. taomasinum sp. n. and T. trifasciatum sp. n. from Madagascar are described, illustrated and keyed. Trogoderma madecassum (Pic, 1924) comb. n. is newly combined from the genus Orphinus. Trogoderma seminigrum Pic, 1915, T. impressiceps (Pic, 1915) and T. madecassum (Pic, 1924) are firstly illustrated.