A new oribatid mite species of the genus Galumna (Oribatida, Galumnidae) is described from South Africa, based on museum collection material. Galumna (Galumna) paralawrencei sp. n. differs from Galumna (Galumna) lawrencei Jacot, 1940 by the larger body size, the localization of adanal lyrifissures, and the presence of a hump-like structure in the anterior part of the prodorsum and distinctly longer notogastral porose areas Aa, A2, A3 and anal and adanal setae.