Four new Malachiidae species from Zambia, Zimbabwe and Namibia are described and figured. Three species (Troglops semicaeruleus, Attalusinus vanviegeni, Colotes nasutus) are recorded from Namibia for the first time. Colpometopus cyaneus EVERS, 1945, is considered a junior synonym of Colpometopus basicornis. Keywords: Insecta, Coleoptera, Malachiidae, Southern Africa, description, new species, new synonyms, new records.