Mygalomorph spiders from Peru (Araneae, Pycnothelidae, Rhytidicolidae): description of two new species and first Peruvian record of the family Rhytidicolidae

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  Mygalomorph spiders from Peru (Araneae, Pycnothelidae, Rhytidicolidae): description of two new species and first Peruvian record of the family Rhytidicolidae Abstract Two previously unknown mygalomorph spider species belonging to two families are described from the south-central Andean region of Peru. Within the family Pycnothelidae,  Acanthogonatus goloboffi  sp. n. is described, diagnosed and illustrated based on a female from Ccochirhuay, Cusco. The female of this species differs from most known  Acanthogonatus  by the shape of the spermathecae, which possess two single receptacles lacking additional projections or chambers. It further differs from congeners sharing a single receptacle by having non-spiraled ducts with a well-defined constriction and outwardly directed spherical receptacles. This represents the second record of the genus  Acanthogonatus  in Peru. Within the family Rhytidicolidae,  Fufius agualaniensis  sp. n. is describe...

Taxonomic Study of Eriovixia panigrahii (Araneae: Araneidae) from Kalahandi, Odisha, India

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Taxonomic Study of Eriovixia panigrahii (Araneae: Araneidae) from Kalahandi, Odisha, India

Abstract

Eriovixia Archer, 1951 is a genus of the spider family Araneidae Clerck, 1757, with 35 named species occurring three species in Africa and thirty two species in Asia.Four Eriovixia species were identified during our survey in the hilly area of Kalahandi, Odisha; three were identified as Eriovixia laglaizei, Eriovixia excelsa, and Eriovixia poonaensis and one was a new species. The new one was described as Eriovixia panigrahisis based on morphological characters and the COI mitochondrial gene sequence. But the species epithet was corrected from Eriovixia panigrahisis to Eriovixia panigrahii by the World Spider Catalog and treated as a “nomen nudum”, as the original description did not designate type specimens and lacked genitalia descriptions. This study presents the revised and complete taxonomic description of Eriovixia panigrahii, based on both male and female holotypes. The holotype and paratypes are clearly designated, and detailed observations of genital morphology are provided. Key diagnostic characters are described to support accurate identification of the species.

Subrat Kumar Panigrahi, Basudev Bag, Dibyaraj Haripal, Mitrabhanu Meher, Swagatika Rani Bariha, Smruti Ranjan Parida, Rajkumar Behera, and Sudhir Ranjan Choudhury. 2025. “Taxonomic Study of Eriovixia Panigrahii (Araneae: Araneidae) from Kalahandi, Odisha, India”. Annual Research & Review in Biology 40 (10):72–77. https://doi.org/10.9734/arrb/2025/v40i102322.