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 ...

Two rare wetland spider species new to Slovakia: Larinia elegans Spassky, 1939 and Tetragnatha reimoseri (Roșca, 1939) (Araneae, Araneidae, Tetragnathidae)

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Two rare wetland spider species new to Slovakia: Larinia elegans Spassky, 1939 and Tetragnatha reimoseri (Roșca, 1939) (Araneae, Araneidae, Tetragnathidae)

Abstract

We report the first Slovak records of Larinia elegans Spassky, 1939 and Tetragnatha reimoseri (Roșca, 1939) based on adult females and a juvenile from wetland habitats in western and southern Slovakia. These findings extend the known Central European ranges for both species. The finding of T. reimoseri adds a new locality within its fragmented European distribution, whereas the record of L. elegans contributes to a more comprehensive understanding of its overall distribution. Diagnostic characters, photographs of specimens, and habitat details are provided to support identification and future monitoring efforts.

Purgat P, Šestáková A, Korenko S, Gajdoš P (2025) Two rare wetland spider species new to Slovakia: Larinia elegans Spassky, 1939 and Tetragnatha reimoseri (Roșca, 1939) (Araneae, Araneidae, Tetragnathidae). Check List 21(6): 1160-1170. https://doi.org/10.15560/21.6.1160