Within the framework of the continuous survey of the Madagascan Oribatida Fauna some newly surveyed Oppioidea (Acari: Oribatida) species are discussed. Altogether 15 species are listed of the recently studied, identified and described taxa originating from several sites of the island (Malagasy Republic). Seven species of them are new to science and some other known only from few localities. One species represents also a new genus, Interbelba gen. nov. Three species, Berniniella bicarinata (Paoli, 1908), Quadroppia circumita (Hammer, 1961) and Discosuctobelba variosetosa (Hammer, 1961)are recorded from Madagascar for the first time. With 22 figures.