The Find-a-Spider Guide

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Hedana species?

Fact Box
Hedana species?
(Or a Cetratus species? As explained below, the identity of this spider is uncertain)
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 does not seem to use any kind of insect-trapping web
The toxicity of this spider is unknown but it probably is harmless to humans
Hedana 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

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.

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. The long spines on the first two pairs of legs also are characteristic of the genus Cetratus rather than Hedana. However, at least in 2017 several photos similar to the ones presented above have been labelled (by unknown persons) as a green Hedana species. While it is true that known Australian Hedana species have a body and leg shape similar to the ones in the photos shown on this page Hedana species are normally brown (though Hedana valida is green) 2aand do not have that distinctive dorsal abdominal pattern. For these reasons it is premature to identify this spider as either a Hedana or a Cetratus species. Indeed, it could even be an entirely different (but undescribed) thomisid species.

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

Email Ron Atkinson for more information.    Last updated 4 April 2019.