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  Big Bluet
            Enallagma durum (Hagen, 1861)

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Species distribution map

Range & Habitat:

Found coastally throughout the state, usually in the upper tidal areas of streams and rivers.  In other states it has been located inland on the grassy shores of large reservoirs.

Big Bluet male dorsal

Click on the thumbnails to enlarge additional photos. 

Description:

Aptly named, it is a BIG bluet. Similar to Familiar Bluet and Atlantic Bluet but can be usually  distinguished by the blue middorsal line and the arrow shaped black markings on the abdomen. The postocular spots are small and connected to the occipital bar.  Caution - some populations are quite small in spite of the name, but the field marks should separate them from the similar species.

 

Conservation Status:

State: S2S3 - Rare to imperiled in New Jersey

Global: G5 - Secure globally, but possibly rare in parts of its range

For a full explanation of the ranks, click here

Flight season:

Early Date: 5/21
Late Date: 11/2

Please scroll down for monthly graph.

 

Flight Season

(hover your mouse over the bar for actual data)
 
Number of Records
1 0 3 4 2 1 1
J F M A M J J A S O N D

Months

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Click here for acknowledgments
Date, distribution, and status data courtesy of Allen Barlow, NJOS

© 2006 Jim Bangma, NJOS  Comments or suggestions?  Use the Feedback Form