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A systematic revision of the granulatus group of the bothriurid scorpion genus UrophoniusPocock, 1893 is presented. Urophonius pizarroi, n. sp., a new species from central Chile, is described. Urophonius granulatusPocock, 1898, Urophonius somuncuraAcosta, 2003, and Urophonius tregualemuensisCekalovic, 1981, are redescribed using modern standards. The adult males of U. somuncura and U. tregualemuensis are described for the first time. A distribution map and key to the species of the granulatus group are provided, along with a discussion of their phenology.