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 ...

On two wolf spiders from Yintiaoling Nature Reserve of Chongqing, China (Araneae, Lycosidae)

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On two wolf spiders from Yintiaoling Nature Reserve of Chongqing, China (Araneae, Lycosidae)

Abstract

Two spiders of the wolf spider family Lycosidae from high altitude area (>1900 m) of Yintiaoling Nature Reserve are presented here, including a new species, Trochosa alpina sp. nov. (male, female) and a poorly known species, Alopecosa pseudocuneata (Schenkel, 1953). The new species is similar to the Holarctic congener, T. ruricola (De Geer, 1778) and Alopecosa pseudocuneata is quite similar to the Palaearctic species, Alopecosa cuneata (Clerck, 1757). Description / redescription, diagnoses, photos and illustrations of these two species are given. Photos of A. cuneata are provided for comparison purposes.

Zhang, X.-Y. and Zhang, Z.-S. (2025) “On two wolf spiders from Yintiaoling Nature Reserve of Chongqing, China (Araneae, Lycosidae)”, Zootaxa. Auckland, New Zealand, 5652(1), pp. 95–102. doi: 10.11646/zootaxa.5652.1.11.