This is a Sweat bee some people call these bees green bees. The sweat bee got it's name the sweat bee is because these bees lick the sweat off of people a lot of people get stung by these little bees but the sting you can't really feel the sting! I have gotten stung by one all I could feel was a little tiny prick because these bees are so small when they sting you they are so little that you can't feel a thing as I said before. These bees are also solitary which means they don't live with a Queen or workers so these bees don't a have a hive?! The question is why do they gather pollen? Well, the answer is for protein! Kinda like when we by yogurt at the store well for protein! Like yogurt for bees! Just so if your wondering sweat bees don't make honey!