REDESCRIPTION OF HADOGENES-ZUMPTI NEWLANDS AND CANTRELL 1985 - AN UNUSUAL ROCK SCORPION (SCORPIONES, ISCHNURIDAE) FROM THE RICHTERSVELD, SOUTH-AFRICA

Hadogenes zumpti Newlands & Cantrell 1985 (Scorpiones, Ischnuridae), f rom the Richtersveld, South Africa, is redescribed. This is the only s pecies of Hadogenes Kraepelin 1894 in which the adults of both sexes a re without a lobe at the base of the movable finger of the chela. The significance of the presence or absence of this lobe as a character wi thin Hadogenes, particularly-with respect to the taxonomically difficu lt Hadogenes tityrus (E. Simon) species complex, is discussed.