The Find-a-Spider Guide

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Jumping spider

Fact Box
Species:
Opisthoncus species
(Note: This species exhibits substantial variations in markings and so is often confused with some other Opisthoncus species. See notes below)
Family:
Salticidae
Body length:
female: 7-9 mm
male: 6-7 mm
Habitat:
Sometimes seen resting on the green leaves of shrubs and low trees but more commonly found in its silken retreat among green leaves
Toxicity:
Unknown; may at least produce local pain but probably will only bite if trapped
Opisthoncus species
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Its retreat
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Front view
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Side view
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Underneath female
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A lighter specimen
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The same species?
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The same species?
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The male?

This is one of the many salticid species that can be found anywhere on trees or in green vegetation because of their great mobility. Opisthoncus species are generally quite easy to recognize to genus because of a small 'lump' between the last pair of eyes. However, there are many known Australian Opisthoncus species and for most of them one of the two sexes has not been adequately (it at all) described but is likely to have a very different appearance when compared with the other sex. In addition, several of the more common species are sufficiently similar in appearance and surface markings that they can only be distinguished from each other by a careful examination of their genitalia. The most recent and comprehensive review of the Australian Opisthoncus species can be found in the following paper: Gardzinska J and Zabka M (2013) "Redescription of the genus Opisthoncus L. Koch, 1880 (Araneae: Salticidae)" Zootaxa 3717, 401-447. This paper contains many images of Opisthoncus species but unfortunately these are all of preserved specimens which therefore have changed colour patterns.

It should also be noted that since several Opisthoncus species look almost identical, the images shown on this page may not all be of the same species.

Spider(s) with a very similar appearance: Several other Opisthoncus species.


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