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...

New records of Stemmops cambridgei and Stemmops ornatus (Araneae: Theridiidae) from Guatemala

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New records of Stemmops cambridgei and Stemmops ornatus (Araneae: Theridiidae) from Guatemala

Abstract

Two spider species belonging to the family Theridiidae, Stemmops cambridgei Levi, 1955 and Stemmops ornatus (Bryant, 1933), are newly recorded from Guatemala.

CHAMÉ-VÁZQUEZ, David, and María-Luisa JIMÉNEZ. 2025. “New Records of Stemmops cambridgei and Stemmops ornatus (Araneae: Theridiidae) from Guatemala”. Revista De La Sociedad Entomológica Argentina 84 (3):e0309. https://www.biotaxa.org/RSEA/article/view/86905.