A comparison of adhesive performance among six cursorial spider species

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  A comparison of adhesive performance among six cursorial spider species Abstract The ability to adhere to surfaces is particularly relevant for cursorial predatory arthropods like hunting spiders, which often traverse relatively complex environments characterized by large variation in substrate properties. Here, we evaluated the adhesive performance of six hunting spider species that are common in eastern temperate North America and lack specialized tarsi for climbing smooth or inclined surfaces [Lycosidae: Pardosa lapidicina Emerton, 1885 and Rabidosa rabida (Walckenaer, 1837); Oxyopidae: Oxyopes salticus Hentz, 1845; Pisauridae: Pisaurina mira (Walckenaer, 1837); Dolomedidae: Dolomedes triton (Walckenaer, 1837), and Dolomedes scriptus Hentz, 1845]. We tested adhesion performance as shear load resistance (g) on a glass plate, and as the angle of failure (°) when the plate was gradually inclined relative to horizontal. Average angle of failure and shear resistance differed among ...

A plant-associated new species of the spider genus Laminacauda (Araneae, Linyphiidae) from Brazil and Uruguay, with new records of the genus

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A plant-associated new species of the spider genus Laminacauda (Araneae, Linyphiidae) from Brazil and Uruguay, with new records of the genus

ABSTRACT 

Laminacauda karaguata Cajade n. sp. is described from Brazil and Uruguay based on both males and females. Illustrations of somatic and sexual characters and a distribution map of the species are provided. Furthermore, additional records and information about the natural history of Laminacauda montevidensis are provided and discussed.

Cajade, M., Rodrigues, E. N. L., Hagopián, D., Laborda, Á., & Simó, M. (2025). A plant-associated new species of the spider genus Laminacauda (Araneae, Linyphiidae) from Brazil and Uruguay, with new records of the genus. Studies on Neotropical Fauna and Environment, 1–11. https://doi.org/10.1080/01650521.2025.2540587