# Uroballus

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***Uroballus*** is an [Asian](/source/Asia) [spider](/source/Spider) [genus](/source/Genus_(biology)) of the jumping spider family, [Salticidae](/source/Salticidae). It includes seven accepted species.[1][2]

*Uroballus* is similar to the related genus *[Stertinius](/source/Stertinius)*.[3] Other related genera are *[Ligurra](/source/Ligurra)*, *[Phyaces](/source/Phyaces)* and *[Simaetha](/source/Simaetha)*.[4]

## Description

Members of this genus have been described from [India](/source/India) and [Sri Lanka](/source/Sri_Lanka), [Vietnam](/source/Vietnam), [Hong Kong](/source/Hong_Kong), and [Borneo](/source/Borneo).[1]

## Description

*Uroballus* are about 3 mm long in both sexes. The [cephalothorax](/source/Cephalothorax) is very broad, almost square. The abdomen is oval, the first pair of legs thick and short with swollen femora. The other legs are weak.

The [spinnerets](/source/Spinneret_(spider)) are very long and thin.[5] Among spiders, only [Hersiliidae](/source/Hersiliidae) possess longer spinnerets. The function of such long spinnerets remains unknown.[4] Adult spiders of some species may mimic lichen moths caterpillars.[2]

## Name

The genus name is a combination of [Ancient Greek](/source/Ancient_Greek) οὐρᾱ́ (ourā́) "tail" and the salticid genus *[Ballus](/source/Ballus)*, referring to the long spinnerets.

## Species

As of October 2025, this genus includes seven species:[1]

- *[Uroballus carlei](/source/Uroballus_carlei)* [Logunov](https://species.wikimedia.org/wiki/Dmitri_V._Logunov) & [Obenauer](https://species.wikimedia.org/wiki/Stefan_Manfred_Obenauer), 2019 – [China](/source/China) ([Hong Kong](/source/Hong_Kong))
- *[Uroballus henicurus](/source/Uroballus_henicurus)* [Simon](/source/Eug%C3%A8ne_Simon), 1902 – [Sri Lanka](/source/Sri_Lanka)
- *[Uroballus kinabalu](/source/Uroballus_kinabalu)* Logunov, 2018 – [Malaysia](/source/Malaysia) ([Borneo](/source/Borneo))
- *[Uroballus koponeni](/source/Uroballus_koponeni)* Logunov, 2014 – Malaysia (Borneo)
- *[Uroballus nazirwanii](/source/Uroballus_nazirwanii)* Prajapati, Malamel & Sebastian, 2020 – [India](/source/India)
- *[Uroballus octovittatus](/source/Uroballus_octovittatus)* Simon, 1902 – Sri Lanka (type species)
- *[Uroballus peckhami](/source/Uroballus_peckhami)* [Żabka](/source/Marek_Micha%C5%82_%C5%BBabka), 1985 – [Vietnam](/source/Vietnam)

## References

1. ["Gen. *Uroballus* Simon, 1902"](https://wsc.nmbe.ch/genus/3038). World Spider Catalog. [doi:10.24436/2](https://doi.org/10.24436/2). Retrieved 2025-10-28.

1. Logunov, D.V. & Obenauer, S.M. 2019. A new species of *Uroballus* Simon, 1902 (Araneae: Salticidae) from Hong Kong, a jumping spider that appears to mimic lichen moth caterpillars. *[Israel Journal of Entomology](/source/Israel_Journal_of_Entomology)* **49**(1): 1–9. [\[1\]](http://doi.org/10.5281/zenodo.2632730)

1. Logunov, D. V. (2018). [Description of two new species from the genera *Stertinius* Simon, 1890 and *Uroballus* Simon, 1902 (Aranei: Salticidae) from north Borneo](https://www.researchgate.net/publication/324068707_Description_of_two_new_species_from_the_genera_Stertinius_Simon_1890_and_Uroballus_Simon_1902_Aranei_Salticidae_from_North_Borneo). *Arthropoda Selecta* **27**(1): 57-60

1. Logunov, D. V. (2014). Description of a new species of *Uroballus* Simon, 1902 (Araneae: Salticidae) from Malaysia, with the longest spinnerets of any known jumping spider. *[Zootaxa](/source/Zootaxa)* **3894**(1): 183-187

1. Murphy & Murphy 2000: 289

## Bibliography

- Murphy, Frances & Murphy, John (2000): An Introduction to the Spiders of South East Asia. *Malaysian Nature Society*, Kuala Lumpur.

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Adapted from the Wikipedia article [Uroballus](https://en.wikipedia.org/wiki/Uroballus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Uroballus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.