''Ubristes'' is a
genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
hoverflies
Hover flies, also called flower flies or syrphid flies, make up the insect family Syrphidae. As their common name suggests, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, whi ...
, 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 bee
Stingless bees, sometimes called stingless honey bees or simply meliponines, are a large group of bees (about 550 described species), comprising the tribe Meliponini (or subtribe Meliponina according to other authors). They belong in the family A ...
s 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
''Carreramyia'' is a genus of hoverflies, with five known species currently.
Biology
Larvae are found in ant nests.
Distribution
Distribution is Neotropical
The Neotropical realm is one of the eight biogeographic realms constituting Earth' ...
'', ''
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
Larva
A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
The ...
e are found in ant
Ants are eusocial insects of the family Formicidae and, along with the related wasps and bees, belong to the order Hymenoptera. Ants evolved from vespoid wasp ancestors in the Cretaceous period. More than 13,800 of an estimated total of 22 ...
nests.
Distribution
They are native to the Neotropics
The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropics, tropical Ecoregion#Terrestrial, terrestrial ecoregions of the Americas and the entire South American temperat ...
.
Species
*'' U. flavitibia'' Walker
Walker or The Walker may refer to:
People
*Walker (given name)
*Walker (surname)
*Walker (Brazilian footballer) (born 1982), Brazilian footballer
Places
In the United States
*Walker, Arizona, in Yavapai County
*Walker, Mono County, California
* ...
, 1852
*'' U. ictericus'' Reemer, 2013[
*'' U. rex'' Reemer, 2017][
]
References
{{taxonbar, from1=Q2746867
Hoverfly genera
Diptera of South America
Microdontinae
Taxa named by Francis Walker (entomologist)