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The
genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...
''Centris'' contains circa 250
species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of large apid bees occurring in the
Neotropical The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In bioge ...
and
Nearctic The Nearctic realm is one of the eight biogeographic realms constituting the Earth's land surface. The Nearctic realm covers most of North America, including Greenland, Central Florida, and the highlands of Mexico. The parts of North America ...
realms, from
Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to th ...
to
Argentina Argentina (), officially the Argentine Republic ( es, link=no, República Argentina), is a country in the southern half of South America. Argentina covers an area of , making it the second-largest country in South America after Brazil, th ...
. Most females of these bees possess adaptations for carrying floral oils rather than (or in addition to) pollen or nectar. They mainly visit plants of the family Malpighiaceae to collect oil, but also visit others such as
Plantaginaceae Plantaginaceae, the plantain family, is a large, diverse family of flowering plants in the order Lamiales that includes common flowers such as snapdragon and foxglove. It is unrelated to the banana-like fruit also called "plantain." In older cl ...
,
Calceolariaceae Calceolariaceae is a family of flowering plants in the order Lamiales that has been recently segregated from Scrophulariaceae. The family includes three genera, '' Calceolaria'', '' Porodittia'', and '' Jovellana'', but analysis suggests that ...
, and
Krameriaceae ''Krameria'' is the only genus in the Krameriaceae family, of which any of the approximately 18 species are commonly known as rhatany, ratany or rattany. Rhatany is also the name given to krameria root, a botanical remedy consisting of the dried ...
. Recent studies have shown they are
sister A sister is a woman or a girl who shares one or more parents with another individual; a female sibling. The male counterpart is a brother. Although the term typically refers to a family, familial relationship, it is sometimes used endearingly to r ...
to the corbiculate bees, the most well-known and economically important group of bees They are large (up to 3 cm), fast-flying bees, distinguished from the closely related genus '' Epicharis'' by the absence of long, whip-like
seta In biology, setae (singular seta ; from the Latin word for " bristle") are any of a number of different bristle- or hair-like structures on living organisms. Animal setae Protostomes Annelid setae are stiff bristles present on the body. ...
e that project backwards from just behind the eyes. They are commonly encountered bees in American deserts, and are active at very high ambient temperatures when many other species are in hiding. They can often be seen in large numbers on
desert-willow ''Chilopsis'' is a monotypic genus of flowering plants containing the single species ''Chilopsis linearis''. It is known commonly as desert willow
(''Chilopsis'') and palo verde (''Parkinsonia'') blossoms. Bees of this genus are of some economical significance in pollinating crops such as
Brazil Nut The Brazil nut (''Bertholletia excelsa'') is a South American tree in the family Lecythidaceae, and it is also the name of the tree's commercially harvested edible seeds. It is one of the largest and longest-lived trees in the Amazon rainforest. ...
(''Bertholletia excelsa'') and Cashew (''Anacardium occidentale'', pollinated by '' C. tarsata'' among others). The
mating system A mating system is a way in which a group is structured in relation to sexual behaviour. The precise meaning depends upon the context. With respect to animals, the term describes which males and females mate under which circumstances. Recognised ...
of one species, '' C. pallida'', has been particularly well-researched by the behavioral ecologist John Alcock; the entomologist
Adolpho Ducke Adolpho Ducke (October 19, 1876 – January 5, 1959), (also referred to as Adolfo Ducke and occasionally misspelled "Duque"), was a notable entomologist, botanist and ethnographer specializing in Amazonia. According to family records, he was an ...
also studied this genus.


Selected species

* ''
Centris errans ''Centris errans'', known generally as wandering centris, is a species of centridine bee in the family Apidae. Other common names include the Florida locust-berry oil-collecting bee and spiny bear's-breech. It is found in the Caribbean and North ...
'' * ''
Centris pallida ''Centris pallida'' is a species of solitary bee native to North America. It lacks an accepted common name; however, it has been called the digger bee, the desert bee, and the pallid bee due to its actions, habitat, and color respectively. The s ...
'' * ''
Centris tarsata The genus ''Centris'' contains circa 250 species of large apid bees occurring in the Neotropical and Nearctic realms, from Kansas to Argentina. Most females of these bees possess adaptations for carrying floral oils rather than (or in addition ...
''


See also

*
List of Centris species This is a list of 215 species in the genus ''Centris'', centris bees. ''Centris'' species * '' Centris adani'' Cockerell, 1949 * '' Centris adunca'' Moure, 2003 * '' Centris aenea'' Lepeletier, 1841 * '' Centris aeneiventris'' Mocsáry, 1899 * '' ...


References


External links


Centris Identification Guide List of SpeciesWorldwide Species Map
Apinae Bee genera {{Apinae-stub