The Find-a-Spider Guide

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Grey house spider

Fact Box
Species:
Zosis geniculata (Platnick)
Previous species name:
Uloborus geniculatus (RM)
Family:
Uloboridae
Body length:
female: 6 mm
male: 4 mm
Habitat:
In a small tangled web
Toxicity:
This species lacks venom glands and therefore must be considered harmless to humans
Zosis geniculata
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With egg sac
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Egg sacs and web
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Side view
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Underneath female

The tangled web formed by this species can be found in the corners of sheds and other rural constructions. There may be more than one adult female in a single web mass. The banding pattern on the legs helps identify this species. Although quite unrelated to Achaearanea tepidariorum this species is also sometimes called the grey house spider.

Spider(s) with a very similar appearance: Uloborus barbipes.


Email Ron Atkinson for more information.    Last updated 31 December 2012.