We document type material of 41 nominal species from mainland China that were originally assigned to Diplommatina. This catalogue is based on inspection of the Heude Type collection in the National Zoological Museum of China, Beijing and complemented with information on types held by other international museums from a comprehensive literature review. We designate lectotypes of five nominal species, Diplommatina abbreviata Heude, 1890, D. confusa Heude, 1885, D. intermedia Heude, 1890, D. minuscula Heude, 1890, D. pupinella Heude, 1885 and D. pyra Heude, 1885. In addition, a new species, Diplommatina yipingica Zhang, sp. nov., is described from Qingdao City, Shandong Province. A new name, D. yunnanensis, is introduced for Diplommatina minuscula Chen & Zhang, 1998, which is a junior homonym of D. minuscula Heude, 1890.