The Find-a-Spider Guide

The Find-a-Spider Guide    The Find-a-Spider Guide    The Find-a-Spider Guide    The Find-a-Spider Guide
Find a spider by...     common name     location       species       family       webs and egg sacs     photos

Grey house spider

Fact Box
Species:
Parasteatoda tepidariorum
(N Platnick)
Previous species name:
Achaearanea tepidariorum (JS)
Family:
Theridiidae
Body length:
female: 7 mm
male: 3 mm
Habitat:
This species builds a thin, tangled web like that of a redback spider
Toxicity:
Uncertain: see note below
Parasteatoda tepidariorum
Click to enlarge
The female
Click to enlarge
Male and female
Click to enlarge
The web
Click to enlarge
Spiderlings

While this species may establish in garden shrubs, it has a fondness for the undersides of outdoor furniture and other open containers. Its general shape resembles that of a redback spider but its colour scheme is very different.

Note that Isbister and Gray (Journal of toxicology; Clinical toxicology, 2003, Vol. 41, pages 809-819) have recorded that bites by Achaeaeanea (or equivalent) species in Australia can cause moderate to severe local pain though probably no systemic effects.

Spider(s) with a very similar appearance: Cryptachaea veruculata.


Email Ron Atkinson for more information.    Last updated 9 February 2013.