The Find-a-Spider Guide

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Storena mainae

Fact Box
Storena mainae
(Identification as shown below)
Body length:
female: 16 mm
male: 11.5 mm
This species makes a retreat in moist leaf litter and in crevices or under rocks and logs. Both sexes are vagrants but the males have a stronger tendency to wander during the breeding season
The toxicity of this spider is uncertain so it should be handled with caution
Storena mainae
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Front view
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View from above
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Underneath male
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Male palp views

The identity of this spider is based on the contents of the following paper: Jocque R. and Baehr B. (1995) "A supplement to the revision of the Australian spider genus Storena (Araneae: Zodariidae) "Records of the Western Australian Museum Supplement No. 52, 135-144. The overall appearance of this spider is such that it has been included in some books and on some websites as Storena colossea but the Jocque/Baehr paper states that the latter species only occurs on Lord Howe Island (and is still listed in the same way in 2018 by the World Spider Catalog) whereas Storena mainae is very common around Sydney, which is where the spider in the above photos was found. The description of Storena mainae as given by these authors is also an excellent match for the spider shown on this page. Of importance are the variations in colour on the cephalothorax and legs, the granular surfaces of the cephalothorax, and the presence of two small white triangles just above the spinnerets.

Mention should also be made here of Storena formosa. A spider first given this name by Thorell in 1870 was then renamed Habronestes formosus by L. Koch in 1872. This was a reasonable change because we now know that Storena and Habronestes species are quite similar in appearance. However, in 1893 Simon restored the Storena formosa name, which is still accepted as valid today. Unfortunately, there are several Storena species that all look much the same, including Storena mainae and Storena colossea and it has been suggested that we should really be talking about the 'Storena formosa complex' to indicate that there may be several very close species or subspecies that all look like the original Storena formosa.

Spider(s) with a very similar appearance: Neostorena species, Hetaerica scenica, Subasteron daviesae, and Storosa obscura.
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Email Ron Atkinson for more information.    Last updated 31 March 2018.