Hidden diversity in plain sight: four new species of Nemesia (Araneae: Mygalomorphae) from the Córdoba Province of Spain

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  Hidden diversity in plain sight: four new species of Nemesia (Araneae: Mygalomorphae) from the Córdoba Province of Spain Abstract A taxonomic revision of the species of Nemesia Audouin, 1826, distributed in the vicinity of Córdoba City, southern Spain, is presented. Four new species are described: Nemesia morana sp. nov. (female), N. kodama sp. nov. (male and female), N. rosae sp. nov. (male and female), and N. tamajoni sp. nov. (male and female). These species are distinguished by distinct morphological characters, including the shape of the spermathecae, palpal bulbs, and spinnerets, as well as by burrow architecture. Fieldwork was conducted across two of the three major habitat types in the region—the humid, forested mountains of Sierra Morena and the croplands and riparian forests of the Guadalquivir Valley—while the third, the “campiña”, which is mainly composed of agricultural landscapes, remains poorly explored. Sampling methods included pitfall trapping and the direct e...

A new species of Reversopelma Schmidt, 2001 from Ecuador, and two new tarantula genera from Argentina, Bolivia, and Colombia (Araneae: Theraphosidae)

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A new species of Reversopelma Schmidt, 2001 from Ecuador, and two new tarantula genera from Argentina, Bolivia, and Colombia (Araneae: Theraphosidae)

Abstract
The genus Reversopelma Schmidt, 2001 is revised and diagnosed based on examination of the type material of its type species, R. petersi Schmidt, 2001, and a new species, Reversopelma spinometatarsi sp. nov., from Ecuador. The new species from Ecuador provides further knowledge on the male palpal bulb and spermathecal morphology of Reversopelma, supporting the delimitation of a new genus: Vitriemboli gen. nov. (type species Vitriemboli diaguita sp. nov.), easily distinguished from Reversopelma by the presence of urticating setae types III and IV. The Bolivian species Reversopelma herzogi Gabriel, Sherwood & Pérez-Miles, 2023 is transferred to Vitriemboli (Vitriemboli herzogi comb. nov.) based on urticating setae and male palpal bulb morphology. A second new genus, Colombiarachne gen. nov. (type species Colombiarachne dianae sp. nov.), discovered separately, is described from Colombia.

Peñaherrera-R, Pedro & Guerrero-Campoverde, Ariel & León-E, Roberto J. & Ríos Tamayo, Duniesky & Sherwood, Danniella & Cisneros-Heredia, Diego. (2025). A new species of Reversopelma Schmidt, 2001 from Ecuador, and two new tarantula genera from Argentina, Bolivia, and Colombia (Araneae: Theraphosidae). Arachnology. 20. 462-472.