A new species of Tyrannoseira (Collembola, Entomobryidae, Seirini) from Paraiba, Northeastern Brazil

摘要

A new species Tyrannoseira gladiata sp. nov. is described from Pedra da Boca State Park, municipality of Araruna, this is the fifth species for this genus, the third found in the State of Paraiba, Brazil. The species is part of a monophyletic group which shares a striking sexual dimorphism, with modifications of the first legs of adult males. The genus is composed of species distributed in a mosaic of micro-habitats along the semi-arid region, in Northeastern Brazil.