On Gaillardia pinnatifida
https://www.butterfliesandmoths.org/sighting_details/1323792
Several were "Hilltoping" on a 12,400-foot elevation highpoint on the continental divide.
Metallic Wood-boring Beetle (Chrysobothris sp.) - possibly Chrysobothris breviloba as per BugGuide; Pass W of Bassam Park, off FSR 185, San Isabel NF, E of Buena Vista, CO
With small prey insect in its jaws.
In tandem. I am still struggling to photograph these in flight.
Female
I have never seen one of these at this pond, although they are in this area on creeks.
On Musk Thistle, Carduus nutans.