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1 April 2014 Natural prey of the crab spider Xysticus marmoratus (Araneae: Thomisidae) on Eryngium plants
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Abstract

The natural prey of medium-sized juvenile (ca. 3 mm) crab spiders Xysticus marmoratus Thorell 1875 inhabiting Eryngium biebersteinianum plants was studied on the Absheron Peninsula, Azerbaijan. The percentage of specimens found feeding on prey was low (3.4%). Xysticus marmoratus is a polyphagous predator with representatives of four arthropod orders found in its diet. The primary food of X. marmoratus was ants (Formicidae), which accounted for 83.3% of the total number of prey. The length of prey killed by X. marmoratus ranged between 0.87–7.50 mm (mean 2.96 mm) and constituted from 28.5–300.0% (mean 96.9%) of the length of their captors. The most frequently captured size group of prey was 50–70% the length of the spiders.

The American Arachnological Society
Elchin Fizuli oglu Huseynov "Natural prey of the crab spider Xysticus marmoratus (Araneae: Thomisidae) on Eryngium plants," The Journal of Arachnology 42(1), 130-132, (1 April 2014). https://doi.org/10.1636/P13-86.1
Received: 8 October 2013; Accepted: 1 January 2014; Published: 1 April 2014
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