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Euglossini
The tribe Euglossini, in the subfamily Apinae, commonly known as orchid bees or Euglossine bees, are the only group of corbiculate bees whose non-parasitic members do not all possess eusocial behavior. ==Description== Most of the tribe's species are solitary, though a few are communal, or exhibit simple forms of eusociality.〔Roubik & Hanson 2004〕 There are about 200 described species, distributed in five genera: ''Euglossa'', ''Eulaema'', ''Eufriesea'', ''Exaerete'' and the monotypic ''Aglae''. All exclusively occur in South or Central America (though one species, ''Euglossa dilemma'', has become established in the United States). The genera ''Exaerete'' and ''Aglae'' are cleptoparasites in the nests of other orchid bees. All except ''Eulaema'' are characterized by brilliant metallic coloration, primarily green, gold, and blue. Females gather pollen and nectar as food from a variety of plants, and resins, mud and other materials for nest building. Some of the same food plants are also used by the males, which leave the nest upon hatching and do not return.〔Williams & Whitten, 1983〕
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