Abstract
Two new species of stag beetles, Lucanus cheni new species and Lucanus langi new species, are described from southeastern Tibet, China. Male and female genitalia of the new species are illustrated and compared to those of the similar species. A new status and a new synonym are presented: Lucanus thibetanus furcifer Arrow new status = Lucanus pseu-dosingularis Didier & Seguy new synonymy.