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Can anyone identify this bee?

Update June 25: According to Kathy Keatley Garvey and Dr. Robbin Thorp at UC Davis, this is a small metallic sweat bee in the genus Halictus, and is probably Halictus tripartitus. Thank you so much for your help!

I have a lot of these tiny bees. They are about 1/4-inch long (0.6 cm) and appear black at first glance. The one below was on a five-spot flower among honey bees and bumble bees that were also foraging in the area. I’d like to know what it is.

Tiny bee on five-spot. Photo by the author
Another shot of the same bee. Photo by the author

Comments

sheryl
Reply

Looks like a blue orchard bee to me, we have quite a few of them here.

Shar
Reply

I have bumblebees feeding on my sedum and wonder what type they are.
They have a black dot on their thorax.

Rusty
Reply

Shar,

I would need to know where you live and see a photo. Then, maybe, I could tell you.

Neil
Reply

I have a bumble bee nest in the wooden wall of my house next to the door I have to use for my office.

I do not want to kill the bees, but am concerned how long they will remain. Any suggestions?

Rusty
Reply

Neil,

Depending on the exact species, the nest may be active for about 6 weeks or most of the summer. However, they do not overwinter. Once the colony dies out, you can fix the wall so another colony does not use it next year.

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