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...

A new goblin spider of genus Guatemoonops Bolzern, Platnick and Berniker (Araneae: Oonopidae) from southern Mexico

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A new goblin spider of genus Guatemoonops Bolzern, Platnick and Berniker (Araneae: Oonopidae) from southern Mexico

ABSTRACT

A new goblin spider of the genus Guatemoonops (Oonopidae) Guatemoonops huitepec Chamé-Vázquez and Jiménez sp. n. is described from Chiapas, Mexico. This new species is described based on both sexes and constitutes the second Mexican species of the genus.

Chamé-Vázquez, D., & Jiménez, M. L. (2025). A new goblin spider of genus Guatemoonops Bolzern, Platnick and Berniker (Araneae: Oonopidae) from southern Mexico. Journal of Natural History, 59(21–24), 1689–1697. https://doi.org/10.1080/00222933.2025.2492396