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 ...

Description of the female huntsman spider Curicaberis pedregal Rheims (Araneae: Sparassidae) from central Mexico and a new record from Tlaxcala state

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Description of the female huntsman spider Curicaberis pedregal Rheims (Araneae: Sparassidae) from central Mexico and a new record from Tlaxcala state

ABSTRACT

The female of the spider Curicaberis pedregal Rheims, 2015 (Sparassidae) is described for the first time. The description is based on two adult females from the state of Tlaxcala, Mexico. Species corroboration is based on two males of the species, collected together with the females. With these new records, the species is currently known to be distributed in the central Mexican states of Mexico City and Tlaxcala.

Valdez Mondragón, Alejandro. 2025. «Description of the Female Huntsman Spider Curicaberis Pedregal Rheims (Araneae: Sparassidae) from Central Mexico and a New Record from Tlaxcala State». ACTA ZOOLÓGICA MEXICANA (N.S.) 41 (1):1-10. https://doi.org/10.21829/azm.2025.4112741.