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 small huntsman spiders (Araneae, Philodromidae) occurring in Guizhou and Hubei provinces, China

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On small huntsman spiders (Araneae, Philodromidae) occurring in Guizhou and Hubei provinces, China

Abstract

Spiders of the family Philodromidae Thorell, 1869 from Guizhou and Hubei provinces, China are studied. A total of three genera and seven species are reported and illustrated, comprising Sinodromus lanyue sp. nov. (newly recorded genus for Hubei), and all known species from both provinces: Philodromus auricomus L. Koch, 1878, P. guiyang Long & Yu, 2022, P. subaureolus Bösenberg & Strand, 1906, P. paiki Jang, Lee, Yoo & Kim, 2024 (the previously records of P. spinitarsis Simon, 1895 from Guizhou and Hubei are presumed to be misidentifications, and should belong to P. paiki), P. rufus Walckenaer, 1826 (new record for Hubei) and Tibellus japonicus Efimik, 1999 (new record for Hubei). Detailed descriptions, diagnoses, and illustrations of S. lanyue sp. nov. and P. guiyang are given, and the male of P. guiyang is diagnosed and described in English for the first time. The other five species are also re-illustrated. Their DNA barcodes were obtained for species delimitation, matching of sexes and future use.

Zhang J, Zhang C, Zhong Y (2025) On small huntsman spiders (Araneae, Philodromidae) occurring in Guizhou and Hubei provinces, China. ZooKeys 1240: 327-368. https://doi.org/10.3897/zookeys.1240.149456