The Find-a-Spider Guide

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Cetratus species?

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Cetratus species?
(Identity as per notes below)
Body length:
female: 5-8 mm
male: 4-7 mm
This species may be found on or under green leaves in damp forest environments and it is not normally seen in association with any kind of insect-trapping web
Unknown but probably harmless to humans
Cetratus species?
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Another view
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Front view
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In its retreat
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Another female

The correct scientific name for this spider is uncertain but its overall shape and colour seem to be sufficiently similar to Cetratus rubropunctatus to be a Cetratus species, although the patterning on the upper surfaces of its abdomen is very different. However, in the 2014 paper by P. Szymkowiak (in Annales of Zoologici Warszawa, Volume 64, pages 333-477) it is mentioned that there are at least two other Cetratus species that have been found in the same region (South Queensland) as C. rubropunctatus so perhaps this is one of them. Alternatively, the spider shown above may be Hedana or an undescribed thomisid genus.

Distinguishing features of this spider are its body shape, green colour, leg positions and spines, and pattern of rectangular 'plates' on its upper abdominal surfaces.

Spider(s) with a very similar appearance: Cetratus rubropunctatus.

Email Ron Atkinson for more information.    Last updated 21 December 2016.