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The female of this species is around 16 mm in length (excluding legs). It is very dark brown to black overall. The abdomen is rounded and bears indistinct yellowish markings. The male is similar but smaller (length about 11 mm) and more slender. The eggs are laid in a white sac in a sheltered place. The female usually guards the sac until the eggs have hatched. This species has been known to bite man.
Amaurobius ferox is a matriphagous spider, meaning that the young devour the mother after hatching. First she lays a second set of eggs on which the newly hatched spiders feed. Then a few days later she actively encourages her offspring to devour her.
|Wikimedia Commons has media related to Amaurobius ferox.|
- "Taxon details Amaurobius ferox (Walckenaer, 1830)", World Spider Catalog, Natural History Museum Bern, retrieved 2016-10-24
- Black lace weaver spider, Amaurobius ferox - Natural History Museum
- Preston-Mafham, Ken (1998). Spiders: Compact Study Guide and Identifier. Angus Books. ISBN 978-1-904594-93-2.
- Kil Won Kim, Chantal Roland, André Horel (2000): Functional Value of Matriphagy in the Spider Amaurobius ferox. Ethology 106(8): 729-742.
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