A new species of violin spider, Loxosceles galianoa, sp. nov. is described from north-western Argentina as a member of the laeta group. A survey of the diversity of the female genitalia in Loxosceles, combined with a phylogeny of its species groups, suggests that the female genitalia is more diverse than that of males in this genus. It is hypothesised that the medically significant Loxosceles laeta likely originated in Peru, not Chile. (Photograph by I. L. F. Magalhaes.)

The knowledge about Gastrotricha in Brazilian territory is still far from complete. In our work we describe a new species and new genus distributed across a wide latitudinal range. The genus is characterised by a novel cephalic cuticular ornamentation, called leafed scale, and supported by molecular phylogeny. In our work we reinforce the importance of using methods of integrative taxonomy for uncovering gastrotrich diversity. (Image credit: Axell Minowa.)