This green iridescent sweat bee is loaded with pollen grains after only a few minutes on the flowers! Check out those eyes. This bee is probably :Agapostemon virescens . The black and white banded abdomen is partially obscured by all the pollen. There is a nice concise description of these bees at
<http://www.everythingabout.net/articles/biology/animals/arthropods/insects/bees/sweat_bee/ >

This green iridescent sweat bee is loaded with pollen grains after only a few minutes on the flowers! Check out those eyes. This bee is probably :Agapostemon virescens . The black and white banded abdomen is partially obscured by all the pollen. There is a nice concise description of these bees at
<http://www.everythingabout.net/articles/biology/animals/arthropods/insects/bees/sweat_bee/ >