Examination of new available material (18 females and six males) of the rare Venezuelan scorpion Mesotityus vondangeli González-Sponga, 1981 (Buthidae) demonstrated that there are consistent taxonomic characters to consider it as a genus different from Tityus C. L. Koch, 1836 sensu stricto. Nevertheless, it shares important characters with species of the Tityus clathratus group (=subgenus Archaeotityus Lourenço, 2006). An emended diagnosis of Mesotityus is given, as well as data on natural history, meristic and morphometric variation.
de Armas, L. F., & Rojas-Runjaic, F. J. 2006 . On the poorly known genus Mesotityus González-Sponga, 1981 (Scorpiones: Buthidae). Euscorpius, No. 47: 1-9.