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Centris

This article is about the bee genus. For the computer, see Macintosh Centris.

The genus Centris contains circa 250 species of large apid bees occurring in the Neotropical and Nearctic regions, from Kansas to Argentina. Most females of these bees possess adaptations for carrying floral oils rather than (or in addition to) pollen or nectar. They visit mainly plants of the family Malpighiaceae to collect oil, but also Plantaginaceae, Calceolariaceae, Krameriaceae and others. Recent studies have shown they are sister to the corbiculate bees, the most well-known and economically important group of bees [1]

They are large (up to 3 cm), fast-flying bees, distinguished from the closely related genus Epicharis by the absence of long, whip-like setae 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) and palo verde (Parkinsonia) blossoms. Bees of this genus are of some economical significance in pollinating crops such as Brazil Nut (Bertholletia excelsa) and Cashew (Anacardium occidentale, pollinated by C. tarsata among others).

The mating system of one species, C. pallida, has been particularly well-researched by the behavioral ecologist John Alcock; the entomologist Adolpho Ducke also studied this genus.

Selected species[edit]

References[edit]

  1. ^ Martins, Aline C.; Melo, Gabriel A. R.; Renner, Susanne S. "The corbiculate bees arose from New World oil-collecting bees: Implications for the origin of pollen baskets". Molecular Phylogenetics and Evolution 80: 88. doi:10.1016/j.ympev.2014.07.003. 

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