A new species of Strotarchus Simon, 1888 from Mexico and description of the male of the type species S. nebulosus Simon, 1888 (Araneae: Cheiracanthiidae)

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  A new species of Strotarchus Simon, 1888 from Mexico and description of the male of the type species S. nebulosus Simon, 1888 (Araneae: Cheiracanthiidae) Abstract A new sac spider of the genus Strotarchus Simon, 1888, S. adrianae spec. nov., is described based on specimens of both sexes collected from Jalisco, Mexico. In addition, the previously unknown male of Strotarchus nebulosus Simon, 1888 is described for the first time. Orozco-Gil, M., Jiménez, M.-L. & Chamé-Vázquez, D. (2026) A new species of Strotarchus Simon, 1888 from Mexico and description of the male of the type species S. nebulosus Simon, 1888 (Araneae: Cheiracanthiidae). Zootaxa, 5821 (2), 263–273. https://doi.org/10.11646/zootaxa.5821.2.7

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.