32 p. : ill., maps ; 26 cm.Includes bibliographical references (p. 30-32).Two new flat rock scorpions, both endemic to South Africa, are described in the bicolor group of Hadogenes Kraepelin, 1894: H. polytrichobothrius n.sp.; H. soutpansbergensis n.sp. Both occupy discrete distributional ranges, allopatric with the other three species in the bicolor group: H. bicolor Purcell, 1899; H. longimanus Prendini, 2001; H. newlandsi Prendini, 2001. The distributions of the five species in the group are mapped, and a key provided for their identification
