Araneus expletus (Araneae, Araneidae): another stabilimentum that does not function to attract prey

William G. Eberhard

doi:10.1636/St07-35SC.1

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William G. Eberhard¹

¹Smithsonian Tropical Research Institute, and Escuela de Biología, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica william.eberhard@gmail.com

Abstract

Juvenile Araneus expletus often place a visually conspicuous, disc-like white silk stabilimentum on one side of the retreat where the spider rests during the day away from its orb. Placement of the stabilimentum at this site rules out a prey attraction function and argues instead that it may function to defend the spider from visually orienting enemies.

Citation Download Citation

William G. Eberhard "Araneus expletus (Araneae, Araneidae): another stabilimentum that does not function to attract prey," The Journal of Arachnology 36(1), 191-194, (1 April 2008). https://doi.org/10.1636/St07-35SC.1

Received: 31 May 2007; Published: 1 April 2008

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