Five new ichneumon wasp species are described from South Africa: Campoplex baal sp. n., Campoplex diablo sp. n., Campoplex mephisto sp. n., Casinaria brachycera sp. n. and Hyposoter nanodraco sp. n. An updated identification key to the Afrotropical Casinaria species is given. Dusona miranda (Szépligeti, 1908) is first reported from Kenya, and the hitherto unknown male is described. Dusona anomala (Seyrig, 1935) is first reported from Ethiopia, Charops electrinus Vas, 2020 and Hyposoter reunionis (Benoit, 1957) are first reported from South Africa.