A wolf spider from South American grasslands: phylogenetic placement and redescription of Paratrochosina amica (Mello-Leitão 1941)

The male of the wolf spider Paratrochosina amica (Mello-Leitao 1941) is redescribed, and the female of this species is described for the first time. Additionally, we evaluate the phylogenetic position of P. amica using the mitochondrial genes cytochrome c oxidase subunit I (cox1), the 12S rRNA (12S) and 16S rRNA (16S), NADH deshydrogenase subunit I (nad1) and the complete tRNA leu (L1). In live specimens we recognized three different morphotypes based on colour patterns. There were no differences in genitalic features of males and females among the three morphotypes. Molecular results through GMYC analyses did not identify independent evolutionary lineages. Genetic and taxonomic results support that the three morphotypes are conspecific. Phylogenetic analysis confirms the position of P. amica in the subfamily Allocosinae.