# Uroballus koponeni

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***Uroballus koponeni*** is a species of [spider](/source/Spider) of the genus *[Uroballus](/source/Uroballus)*. It is endemic to the [Malaysian](/source/Malaysia) part of [Borneo](/source/Borneo).[1][2]

This species is closest to *[Uroballus kinabalu](/source/Uroballus_kinabalu)*. *U. koponeni* has different spermathecal chambers, longer spinnerets, and long abdominal hairs.[3]

## Distribution

*Uroballus koponeni* has been described from one female and two immatures, which were collected in 1987, by beating foliage in secondary forest in Kampong Kuap, near [Kuching](/source/Kuching), [Sarawak](/source/Sarawak), Borneo.[2]

## Name

The species is named after Finnish [arachnologist](/source/Arachnologist) [Seppo Koponen](/source/Seppo_Koponen), who turned 70 at the year of description.

## Description

The body of the female is about 3 mm long. The abdomen is unusually long, with a zebra-like pattern and transverse rows of dark long hairs.[2]

The abdomen of the female is covered in dark long hears, becoming especially dense and long near at the rear end, and on the spinnerets. This species has the longest spinnerets of any *[Uroballus](/source/Uroballus)*, and indeed of any salticid. They are around half as long as the abdomen.[2]

## References

1. ["Uroballus koponeni Logunov, 2018"](https://wsc.nmbe.ch/species/53742/Uroballus_koponeni). World Spider Catalog. Retrieved 20 March 2019.

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 3894(1): 183-187

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

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