How Micrathena duodecimspinosa (Araneae: Araneidae) uses the elasticity of her dragline to hide her egg sac

William G. Eberhard

doi:10.1636/0161-8202-43.3.417

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William G. Eberhard¹

¹Smithsonian Tropical Research Institute; Escuela de Biología, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica. E-mail: william.eberhard@gmail.com

Abstract

A female Micrathena duodecimspinosa (O. P. Cambridge, 1890) used the elasticity of her long dragline to repeatedly jerk her newly constructed egg sac up and down as she lowered it into the leaf litter below. Jerking may reduce the chances that the sac will be entangled in vegetation before it reaches the leaf litter or help insert it deeper into the litter, where it is visually camouflaged.

The American Arachnological Society

Citation Download Citation

William G. Eberhard "How Micrathena duodecimspinosa (Araneae: Araneidae) uses the elasticity of her dragline to hide her egg sac," The Journal of Arachnology 43(3), 417-418, (1 November 2015). https://doi.org/10.1636/0161-8202-43.3.417

Received: 8 October 2011; Published: 1 November 2015

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