Beneath the surface: A new northern species of Trogloraptor (Araneae: Trogloraptoridae), genetic diversity and natural history

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  Beneath the surface: A new northern species of Trogloraptor (Araneae: Trogloraptoridae), genetic diversity and natural history Abstract We present a morphological description of a recently discovered species of spider in the family Trogloraptoridae from the Columbia River Gorge in northwestern Oregon. The family was previously monotypic (Trogloraptor marchingtoni) and only known from populations near the southwestern Oregon—northern California border. Trogloraptor tulishpun sp. nov. retains the key family synapomorphy, distinctive subsegmented raptorial tarsi, and an oblique membranous division of the basal segment of the anterior lateral spinnerets. Trogloraptor tulishpun is distinguished from T. marchingtoni by its color pattern, clypeal height, vulvar and palp structure. We have found T. tulishpun in four localities in the Columbia River Gorge, which show little mitochondrial sequence divergence from one another, but are highly genetically distinct from T. marchingtoni. Troglo...

A new species of Euathlus (Araneae: Theraphosidae) from northern Chile, with morphological novelties for the genus

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A new species of Euathlus (Araneae: Theraphosidae) from northern Chile, with morphological novelties for the genus 

Abstract 

A new species of Euathlus Ausserer 1875 is described from the Coquimbo Region, Chile. Euathlus sinapophysis sp. nov. is differentiated from its congeners by the presence of an oval patch of setae on the ventral surface of the abdomen and the absence of a tibial apophysis on the first leg of males. Both morphological characteristics are reported for the first time for the genus. 

Montenegro, Rubén & Aguilera, Milenko. (2025). UNA ESPECIE NUEVA DE EUATHLUS (ARANEAE: THERAPHOSIDAE) DEL NORTE DE CHILE, CON NOVEDADES MORFOLÓGICAS PARA EL GÉNERO. Revista Ibérica de Aracnología. 47. 3-8.