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Ubristes is a genus of hoverflies, with four known species. All are characterized by their metatibiae, 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 in the tribe Meliponini.

The presence or absence of the appendix on vein R4+5 is variable within this group. 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).

Biology

Larvae are found in ant nests.

Distribution

They are native to the Neotropics.

Species

• U. flavitibia Walker, 1852
• U. ictericus Reemer, 2013
• U. jaguarinus Reemer, 2013
• U. rex Reemer, 2017

References

1. ^ Reemer, Menno (2017). "Ubristes rex sp. n., a new microdontine hoverfly from northern Brazil (Diptera: Syrphidae: Microdontinae)". Zootaxa. 4362 (2): 280–286. doi:10.11646/zootaxa.4362.2.7. PMID 29245430.
2. ^ Reemer, Menno; Ståhls, Gunilla (2013). "Generic revision and species classification of the Microdontinae (Diptera, Syrphidae)". ZooKeys (288): 1–213. doi:10.3897/zookeys.288.4095. PMC 3690914. PMID 23798897.
3. ^ 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" (PDF Adobe Acrobat). Zootaxa. 1879. New Zealand: Magnolia Press: 21–48. doi:10.11646/zootaxa.1879.1.3. ISSN 1175-5334. Retrieved 2009-09-11.
4. ^ Reemer, Menno (2013). "Taxonomic exploration of Neotropical Microdontinae (Diptera: Syrphidae) mimicking stingless bees" (PDF). Zootaxa. 3697 (1): 1–88. doi:10.11646/zootaxa.3697.1.1. PMID 26079022. S2CID 3968278.

• Hoverfly genera
• Diptera of South America
• Microdontinae
• Taxa named by Francis Walker (entomologist)