Visual Key: Bluets

We’re down to the Bluets (blue-striped damselflies), which is a handy term encompassing two genera.

All but one of our Bluets fall into the Coenagrion genus, sporting the so-called “Coenagrion spur” on the side of the thorax. The exception is the Common Blue Damselfly (Enallagma cyathigerum) with NO spur and with very wide antehumeral stripes in both sexes.

Coenagrion spur on side of thorax

NO Coenagrion spur; wide antehumeral stripe


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