
Eucera is genus of bees in the family Apidae subfamily Apinae. Antennae of males are very long. Eucera species nest in the ground. These bees are important pollinators of alfalfa. Species belonging to genus Eucera are present in most of Europe, in the East Palearctic ecozone and in the Near East. This genus has 78 species in Europe. ...
Found on
http://en.wikipedia.org/wiki/Eucera

(from the article `Orchidales`) ...Four genera of solitary bees and wasps appear to be the principal pollinators. The orchid species of Ophrys that are pollinated by the wasps ...
Found on
http://www.britannica.com/eb/a-z/e/50
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