California Department of Fish and Wildlife
Aquatic Biological Assement

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Coenagrionidae Level 1 Level 2

Coenagrionidae

 

Key Characters

Generally, most commonly found family of Zygoptera in North America. First antennal segment distinctly shorter than the combined legth of the following segments. Proximal portion of gills not differing from distal portion

Tolerance Variable, from 5-9
Distribution CA, OR, WA, NV, AZ, Baja