Marsh Bluet - Enallagma ebrium (Hagen, 1861)

This is a species of concern. Please report any encounters to Odonata Central.

Range & Habitat:

Recorded throughout the northern tier of states, there is also an interesting record from Monmouth county.


Flight Season:
Early Date: 30 May
Late Date: 23 July

Flight season charts created from records in the official database maintained by Allen Barlow.

Male Lateral - Photo by Allen Barlow
Click on a thumbnail to view full-size photo

Largely blue, it is almost identical to the more common Hagen's Bluet, and must be identified by critical examination of the terminal appendages. Told from bluets such as Boreal, Northern and Familiar by the teardrop shaped postocular spots and small occipital bar. Possibly can be told from the Northern/Boreal complex by the blue sides to S10


Conservation Status:
State: S1S2 Imperiled to critically imperiled in New Jersey
Global: G5 Secure globally, but possibly rare in parts of its range