About Parabuthus brevimanus (Thorell, 1876)
Parabuthus brevimanus is most morphologically similar to P. gracilis, and the two species are sympatric in the Erongo and Kunene regions of Namibia. It can be distinguished from all other species in its clade by a set of distinct morphological characteristics. In both sexes, the surface of the median ocular tubercle is smooth and shiny; this is not the case for the surrounding carapace surface of females. The chela manus, the base of the pedipalp, is also smooth. While some carinae (ridges) on the four proximal tail segments are weakly developed, the remaining ridges on the second and third tail segments bear uniquely arranged processes and tubercles.
