I made a brief stop in the I-35 Huxley-Slater interchange today to see what insects were flying.
This bee, probably a leaf cutter bee, was on purple coneflower.
Wild bergamot also had an insect visitor. I am pretty sure it was another bee but I did not get another view of it. On the left side of the flower is a small geometrid caterpillar. Look for the plant part with the stripe on it.