Continuing from the previous post...
I used to think that honey bees did the vast majority of pollination in my yard here in Jefferson County, Colorado. The more I look, the more I notice just how many other insects are in my flowers and many of them are native Colorado bees.
This little green sweat bee, Augochlorella aurata, is often seen in the flowers of my sedum or dill weed. It is a very tiny bee with such a beautiful metallic sheen.
We also seem to have quite a variety of leaf cutter bees and their relatives. Besides this fellow from the last post, Lithurgus apicalis,
we also have other bees in the Megachilidae family such as this tiny white faced bee:
this little bee:
this little green eyed Anthidium oblongatum on sedum:
and this honeybee sized Megachile perihirta with the incredible orange butt:
And there are the bumble bees. Here's one in my Salvia transylvanica:
Here is the cute little orange striped bumble bee, Bombus huntii in Penstemon Red Rocks: