Contribution to the knowledge of Geminoppia (Acari, Oribatida, Oppiidae), with description of a new species from South Africa

A new species of the genus Geminoppia (Oribatida, Oppiidae) is described from moss of Hogsback State Forest, Eastern Cape Province, South Africa. Geminoppia amatholensis sp. n. differs from its related species Geminoppia maior comb. n. by the absence of discidium and the presence of very long notogastral seta h1. Summarized generic traits, an identification key, distribution and habitats of all known species of Geminoppia are presented.