The Find-a-Spider Guide

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Red-and-black spider

Fact Box
Nicodamid species (JS)
(see notes below)
Previous species name:
Nicodamus bicolor
Body length:
female: 7 mm
male: 5 mm
On or close to the ground with little webbing present
Uncertain; handle with caution
Nicodamid species
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The male
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Another species?
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Its undeside
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Preserved spiders

The mostly red colour of the cephalothorax and legs and the brown to blue-black abdomen of the members of this family are distinctive.

Note that in the revision of the nicodamid family published by Dr Mark Harvey of the Western Australian Museum in 1995 the original single species was expanded to 7 genera containing 23 species, almost none of which can be identified with certainty without a close examination of the male and female genital structures. It appears that nicodamid specimens collected in South-east Queensland are most likely to belong to one of the following genera: Oncodamus, Nicodamus, Ambicodamus, or Dimidamus.

Spider(s) with a very similar appearance: Dimidamus dimidiatus.

Email Ron Atkinson for more information.    Last updated 30 November 2014.