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

Posted by
  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...

Descriptions of three new Heteropoda spiders from tropical Asia (Araneae: Sparassidae)

Posted by

 


Descriptions of three new Heteropoda spiders from tropical Asia (Araneae: Sparassidae)

Abstract

Three new species of the genus Heteropoda (Araneae: Sparassidae: Heteropodinae) are described: Heteropoda curvata sp. nov. (♂, Sabah), Heteropoda flamma sp. nov. (♂, Hainan), and Heteropoda lucerna sp. nov. (♀, Guangxi Zhuang Autonomous Region). Detailed morphological descriptions, diagnostic illustrations, and a distribution map are provided for each species to facilitate identification and comparison with congeners.

KORAI, S. K., & JÄGER, P. (2025). Descriptions of three new Heteropoda spiders from tropical Asia (Araneae: Sparassidae). European Journal of Taxonomy, 1022(1), 277-287. https://doi.org/10.5852/ejt.2025.1022.3091