Blue-eyed Darner (Rhionaeschna multicolor)
Photographed
Pretty confident in observation of 3 males and at least one female. Additionally observed exuviae at Siberian Crane pond, however I cannot ID species. will include the photo I could get as they are beyond the barrier to the pond. Observed possible 'copulation' as a male zoomed across the pond to 'capture' another individual appearing darker and tumbled into the tall grass and did not emerge that I could find. Additionally, a couple of times, males appeared to curl thorax upwards as they flew. Behaviorally patrolling fairly low around the pond edges and occasionally over the middle.