# Ubristes

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***Ubristes*** is a [genus](/source/Genus) of [hoverflies](/source/Hoverfly), with four known species.[1][2] All are characterized by their [metatibiae](/source/Metatibia), which are usually enlarged, but always with a brush of long pile along the dorsal edges. These flies are probably mimics of the [stingless bees](/source/Stingless_bee) in the tribe Meliponini.[3]

The presence or absence of the appendix on vein R4+5 is variable within this group.[3] The type species of *[Carreramyia](/source/Carreramyia)*, *[Hypselosyrphus](/source/Hypselosyrphus)* and *[Stipomorpha](/source/Stipomorpha)* were formerly included in *Ubristes*; the latter two genera were also considered subgroups of *Ubristes*. All three are now considered separate genera by Reemer & Ståhls (2013).[2]

## Biology

[Larvae](/source/Larva) are found in [ant](/source/Ant) nests.

## Distribution

They are native to the [Neotropics](/source/Neotropical).[3]

## Species

- *[U. flavitibia](/source/Ubristes_flavitibia)* [Walker](/source/Francis_Walker_(entomologist)), 1852
- *[U. ictericus](/source/Ubristes_ictericus)* Reemer, 2013[4]
- *[U. jaguarinus](/source/Ubristes_jaguarinus)* Reemer, 2013[4]
- *[U. rex](/source/Ubristes_rex)* Reemer, 2017[1]

## References

1. Reemer, Menno (2017). "Ubristes rex sp. n., a new microdontine hoverfly from northern Brazil (Diptera: Syrphidae: Microdontinae)". *[Zootaxa](/source/Zootaxa)*. **4362** (2): 280–286. [doi:10.11646/zootaxa.4362.2.7](https://doi.org/10.11646/zootaxa.4362.2.7). [PMID 29245430](https://pubmed.ncbi.nlm.nih.gov/29245430)

1. Reemer, Menno & Ståhls, Gunilla (2013). "Generic revision and species classification of the Microdontinae (Diptera, Syrphidae)". *[ZooKeys](/source/ZooKeys)*. '***(288): 1–213. [doi:10.3897/zookeys.288.4095](https://doi.org/10.3897/zookeys.288.4095). [PMC 3690914](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3690914). [PMID 23798897](https://pubmed.ncbi.nlm.nih.gov/23798897)***

1. Cheng, Xin-Yue & Thompson, F. Christian (2008). ["A generic conspectus of the Microdontinae (Diptera: Syrphidae) with the description of two new genera from Africa and China"](http://mapress.com/zootaxa/2008/f/zt01879p048.pdf) (PDF Adobe Acrobat). *Zootaxa*. **1879**: 21–48. New Zealand: Magnolia Press. [doi:10.11646/zootaxa.1879.1.3](https://doi.org/10.11646/zootaxa.1879.1.3). [ISSN 1175-5334](https://www.worldcat.org/issn/1175-5334). Retrieved 2009-09-11.

1. Reemer, Menno (2013). ["Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees"](https://biotaxa.org/Zootaxa/article/download/zootaxa.3697.1.1/18325) (PDF). *[Zootaxa](/source/Zootaxa)*. **3697** (1): 1–88. [doi:10.11646/zootaxa.3697.1.1](https://doi.org/10.11646/zootaxa.3697.1.1). [PMID 26079022](https://pubmed.ncbi.nlm.nih.gov/26079022). [S2CID 3968278](https://api.semanticscholar.org/CorpusID:3968278)

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