A Deep Divergence in the Cold: Yagania, a New Genus of Ghost Spider from Isla de Los Estados, Argentina (Araneae: Anyphaenidae)

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  A Deep Divergence in the Cold: Yagania, a New Genus of Ghost Spider from Isla de Los Estados, Argentina (Araneae: Anyphaenidae) Abstract (1) Background: Ghost spiders of the family Anyphaenidae are well represented in Tierra del Fuego, although the evergreen forests of this region are notably understudied. (2) Methods: We based our work on a previous phylogenetic analysis of four markers, studied the morphology using microscopy, and characterized the habitat by vegetation and climate. (3) Results: An undescribed species from Isla de los Estados represents a deeply diverging lineage, which we describe here as Yagania chuanisin n. gen. and n. sp. (4) Conclusions: This species is likely associated with cold and rainy evergreen forests found only in specific areas of Tierra del Fuego Archipelago, where further sampling should be focused to better evaluate the species’ geographic range, as well as its conservation status. Ramírez, M. J., Magalhaes, I. L., Lencinas, M. V., & Martí...

Contributions to the knowledge of trapdoor spiders: descriptions of Iberesia melici sp. nov., the female of Nemesia dukagjinica Geci & Sherwood, 2025, and new distribution records of some other European nemesiids (Araneae: Nemesiidae)

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Contributions to the knowledge of trapdoor spiders: descriptions of Iberesia melici sp. nov., the female of Nemesia dukagjinica Geci & Sherwood, 2025, and new distribution records of some other European nemesiids (Araneae: Nemesiidae)

Abstract
A new species, Iberesia melici sp. nov., is described from Santa Fé de Montseny, Catalonia, Spain, based on a holotype male; the female of Nemesia dukagjinica Geci & Sherwood, 2025, from Kosovo, is described for the first time. Finally, faunistic data are presented for some specimens of four assorted nemesiids: Brachythele denieri (Simon, 1916), B. media Kulczyński, 1897, Iberesia machadoi Decae & Cardoso, 2006, and Nemesia has tensis Decae, Pantini & Isaia, 2015.

Geci, Donard & Sherwood, Danniella. (2025). Contributions to the knowledge of trapdoor spiders: descriptions of Iberesia melici sp. nov., the female of Nemesia dukagjinica Geci & Sherwood, 2025, and new distribution records of some other European nemesiids (Araneae: Nemesiidae). Arachnology. 20. 485-490.