A new species of Brazilian troglobitic harvestman of the genus Iandumoema (Opiliones: Gonyleptidae)

Iandumoema setimapocu sp. n. is described from the cave Lapa do Zu, Coração de Jesus, Minas Gerais State, Brazil. The new species is closely related to Iandumoema uai Pinto-da-Rocha, 1996 in the subfamily Pachylinae, from which it dif-fers by the following features: Male femur IV straight; the male apophysis on coxa IV directed obliquely backward; eyes depigmented; tubercles on femur IV close to each other, separated by about one diameter; male pedipalpal tibia with ectal setae IiiIi; lack of median setae on ventral plate of penis. Iandumoema is the first exclusively troglobitic genus of Opiliones in Brazil that contains two species. Key words: Pachylinae; cave; troglomorphi