Boreal Bluet - Enallagma boreale (Selys, 1875)

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

Range & Habitat:

Recorded only from Sussex and Morris counties, this species should be looked for in other areas of the Highlands and Ridge & Valley provinces.


Flight Season:
Early Date: 15 May
Late Date: 9 July

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

Male Lateral - Photo by Jim Bangma

Largely blue, with a relatively narrow black humeral stripe, it is virtually identical to the more common Northern Bluet. The postocular spots are large and rounded-triangular, narrowly separated from a thin occipital bar.

Can be distinguished from Familiar Bluet by the large postocular spots and the shorter cerci. Can be told from the Hagen's/Marsh complex by the size and shape of the postocular spots and possibly by the nearly all black S10.

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