Northern Bluet is a common and widespread bluet across much of North America. Its range was once thought to include northern Eurasia, but recent genetic studies (Turgeon et al. 2005) showed that Eurasian and North American populations separated about 250,000 years ago and should now be considered separate species. The Eurasian Bluet goes by the name Enallagma cyathigerum — which was the name given to the combined group (e.g., Manolis 2003) — but now that they are split, the North American bluet is Enallagma annexum. The photo below illustrates that an abdomen can be very flexible (all bluets can do contortions).