A new genus, Minarisoma gen. nov. , is described to include three small species of South African distribution: Minarisoma landecki sp. nov. (type species), Minarisoma crassipes comb. nov. , and M. tigrinum comb. nov. These species were previously assigned to the genus Onosandrus . Minarisoma gen. nov. marks the ninth genus of king crickets known from southern Africa. A comprehensive key to the identification of species within this newly established taxon is presented. In conclusion, the taxonomic relationships of South African taxa are discussed.