There were Bluets pretty much everywhere I went among the Potholes and Prairies of central North Dakota. I am not advanced enough (and may never be) to distinguish Boreal from Northern from Prairie from Familiar, etc. etc. as nine species occur around the wetlands of the high prairie, and they all look pretty much like the image above. This shot is from the edge of Mud Lake, on Chase Lake National Wildlife Refuge.

The second image is a mating wheel from another small lake at Chase Lake NWR.

Canon SX40HS. Program with iContrast and –1/3EV exposure compensation.  Both shots at 1680mm equivalent field of view from about 5 feet (that is 840mm optical zoom plus 2x digital tel-converter). f5.8 @ 1/500th and 1/400th @ ISO 100.

Processed in Lightroom for intensity, clarity, and sharpness.