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 ...

Revision of the velvet spiders (Araneae, Eresidae) with a new record from South Korea

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Abstract

Background

The genus Eresus Walckenaer, 1805, commonly known as the ladybird spiders, comprises 30 species primarily distributed in the Palaearctic, Afrotropical and Oriental Regions as well as South America, with only one species, E. kollari Rossi, 1846, recorded from South Korea.

New information

New taxonomic and distribution data on the genus Eresus Walckenaer, 1805, are provided. A newly-recorded species, E. granosus Simon, 1895, is described along with E. kollari Rossi, 1846 with a detailed description, illustrations and ecological photographs from South Korea.

Lee SY, Jang CM, Yoo JS, Jo Y-S, Kim ST (2025) Revision of the velvet spiders (Araneae, Eresidae) with a new record from South Korea. Biodiversity Data Journal 13: e165869. https://doi.org/10.3897/BDJ.13.e165869