View source for Ubristes

{{Short description|Genus of flies}}
{{Taxobox
| regnum = [[Animal]]ia
| phylum = [[Arthropod]]a
| classis = [[Insect]]a
| ordo = [[Fly|Diptera]]
| familia = [[Hoverfly|Syrphidae]]
| subfamilia = [[Microdontinae]]
| genus = '''''Ubristes'''''
| genus_authority = [[Francis Walker (entomologist)|Walker]], 1852
| type_species = ''[[Ubristes flavitibia]]''
| type_species_authority = [[Francis Walker (entomologist)|Walker]], 1852
| synonyms =
}}
'''''Ubristes''''' is a [[genus]] of [[hoverfly|hoverflies]], with four known species.<ref name=Reemer2017>{{cite journal|first=Menno|last=Reemer|year=2017|title=Ubristes rex sp. n., a new microdontine hoverfly from northern Brazil (Diptera: Syrphidae: Microdontinae)|journal=[[Zootaxa]]|volume=4362|issue=2|pages=280–286|doi=10.11646/zootaxa.4362.2.7|pmid=29245430}}</ref><ref name=Reemer2013>{{cite journal|first1=Menno |last1=Reemer|first2=Gunilla|last2=Ståhls|year=2013|title=Generic revision and species classification of the Microdontinae (Diptera, Syrphidae)|journal=[[ZooKeys]]|issue=288|pages=1–213|doi=10.3897/zookeys.288.4095|pmid=23798897|pmc=3690914|doi-access=free}}</ref> All are characterized by their [[metatibia]]e, which are usually enlarged, but always with a brush of long pile along the dorsal edges. These flies are probably mimics of the [[stingless bee]]s in the tribe Meliponini.<ref name="Cheng2008">{{cite journal | last1 = Cheng | first1 = Xin-Yue | last2 = Thompson | first2 = F. Christian | year = 2008 | title = A generic conspectus of the Microdontinae (Diptera: Syrphidae) with the description of two new genera from Africa and China | journal = Zootaxa | volume = 1879 | pages = 21–48 | publisher = Magnolia Press | location = New Zealand | doi = 10.11646/zootaxa.1879.1.3 | issn = 1175-5334 | url = http://mapress.com/zootaxa/2008/f/zt01879p048.pdf | format = PDF Adobe Acrobat | accessdate = 2009-09-11 | doi-access = free }}</ref>
The presence or absence of the appendix on vein R4+5 is variable within this group.<ref name="Cheng2008"/>  The type species of ''[[Carreramyia]]'', ''[[Hypselosyrphus]]'' and ''[[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).<ref name=Reemer2013/>
==Biology==
[[Larva]]e are found in [[ant]] nests.
==Distribution==
They are native to the [[Neotropical|Neotropics]].<ref name="Cheng2008"/>
==Species==
*''[[Ubristes flavitibia|U. flavitibia]]'' <small>[[Francis Walker (entomologist)|Walker]], 1852</small>
*''[[Ubristes ictericus|U. ictericus]]'' <small>Reemer, 2013</small><ref name=Reemer2013b>{{cite journal|first=Menno|last=Reemer|year=2013|title=Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees|url=https://biotaxa.org/Zootaxa/article/download/zootaxa.3697.1.1/18325|format=PDF|journal=[[Zootaxa]]|volume=3697|issue=1|pages=1–88|doi=10.11646/zootaxa.3697.1.1|pmid=26079022|s2cid=3968278 |doi-access=free}}</ref>
*''[[Ubristes jaguarinus|U. jaguarinus]]'' <small>Reemer, 2013</small><ref name=Reemer2013b/>
*''[[Ubristes rex|U. rex]]'' <small>Reemer, 2017</small><ref name=Reemer2017/>
==References==
{{reflist}}
{{taxonbar|from1=Q2746867}}
[[Category:Hoverfly genera]]
[[Category:Diptera of South America]]
[[Category:Microdontinae]]
[[Category:Taxa named by Francis Walker (entomologist)]]