The neonicotinoid imidacloprid impairs the predatory performance and functional response of the jumping spider Helpis minitabunda (Araneae, Salticidae)

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  The neonicotinoid imidacloprid impairs the predatory performance and functional response of the jumping spider Helpis minitabunda (Araneae, Salticidae) Abstract The neonicotinoid imidacloprid can cause lethal and sublethal effects in non-target organisms, including impaired behavior, reduced fertility, disrupted locomotion, and reduced predatory performance in arthropods. Spiders are among the most abundant arthropod predators in terrestrial ecosystems, including agricultural ecosystems, yet the effects of neonicotinoids on the predatory function of jumping spiders remain poorly understood. The functional response of a predator describes how predation rates change with prey density and is key to understanding predator–prey dynamics. We tested whether acute exposure to a commercial formulation of imidacloprid at field-recommended concentrations alters the functional response of the Aussie bronze jumping spider, Helpis minitabunda (L. Koch, 1880). We compared the predation of treat...

Revision of the genus Micaria Westring, 1851 from China (Araneae: Gnaphosidae)

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Revision of the genus Micaria Westring, 1851 from China (Araneae: Gnaphosidae)

Abstract

The genus Micaria Westring, 1851 from China is revised. Nine new species are described: M. ciri sp. nov. (♂♀), M. everest sp. nov. (♂♀), M. ganzi sp. nov. (♂), M. geralt sp. nov. (♂♀), M. xinglongi sp. nov. (♂♀), M. xizang sp. nov. (♂♀), M. ya sp. nov. (♂♀), M. yeti sp. nov. (♂♀) and M. yunshani sp. nov. (♂♀). Three specific names are newly synonymized: M. alxa Tang, Urita, Song & Zhao, 1997 syn. nov. and M. yushuensis Hu, 2001 syn. nov. with M. rossica Thorell, 1875, and M. logunovi Zhang, Song & Zhu, 2001 syn. nov. with M. fulgens (Walckenaer, 1802). Five species are newly recorded in China: M. longimana Suzuki, 2022, M. nivosa L. Koch, 1866, M. micans (Blackwall, 1858), M. pallipes (Lucas, 1846) and M. tripunctata L. Koch, 1866. The male of M. bonneti Schenkel, 1963 is described for the first time. 28 species are assigned to five species groups, and 26 species are illustrated.

Liu, B. & Zhang, F. (2025) Revision of the genus Micaria Westring, 1851 from China (Araneae: Gnaphosidae). Zootaxa, 5645 (1), 1–114. https://doi.org/10.11646/zootaxa.5645.1.1