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 familiy Malpighiaceae to collect oil, but also Plantag...
Found on http://en.wikipedia.org/wiki/Centris

Centris

(from the article `Orchidales`) Some species of orchids are pollinated by bees that are attracted by means of deception. The flowers of the large genus Oncidium, for example, are ... ...they are not afraid to trigger the explosive mechanism that liberates a cloud of pollen in alfalfa flowers. Certain Ecuadorian orchids (Oncidium) ... ...
Found on http://www.britannica.com/eb/a-z/c/45
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