Archive for February, 2012

Gallery of Halictidae. Halictini

February 28, 2012

Lasioglossum




Halictus





Agapostemon


Gallery of Halictidae. Augochlorini

February 25, 2012

The members of the Augochlorini tribe of the family Halictidae are all metallic green, sometimes they have bluish or coppery tones. Their name refers to the green color. The most common ones in our area are Augochlora pura, Augochlorella aurata and Augochloropsis metallica.





Gallery of Colletidae

February 24, 2012

Colletidae is a small family of bees. They use a material similar to cellophane to build their nests and thus they are called cellophane or plasterer bees.




Gallery of carpenter bees

February 24, 2012

Carpenter bees belong to the Apidae family.

Xylocopa. The most familiar ones are the large carpenter bees of the genus Xylocopa. They get their name from their habit to drill holes in wood for nesting purposes. They prefer soft and untreated wood.



Ceratina. There are also small carpenter bees, Ceratina. They look very different and are considerably smaller. Instead of making their own nests by chewing on wood, they choose hollow twigs for nesting.



Gallery of Nomada bees

February 21, 2012

All the bees in the subfamily Nomadinae of the Apidae family are cleptoparasites, meaning that they lay their eggs in the nests of other bees and their larvae feed on the stored food as well as on the egg or larva of the host species. They don’t gather pollen, however they visit flowers in search of nectar and of hosts, so they accomplish some pollination. Many of them are active early in the spring and quite a few parasitize Andrenidae, another group of early bees. They are a difficult group, only a few can be identified to species by photos alone.





Gallery of long-horned bees, Eucerini

February 20, 2012

Image




Gallery of Bumble Bees

February 17, 2012









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Gallery of Andrenidae bees

February 15, 2012










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