California Department of Fish and Wildlife
Aquatic Biological Assement

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Libellulidae Level 1 Level 2

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Libellulidae

 

Key Characters

Cerci usually no more than half as long as paraprocts. No median groove on ventral side of prementum.Crenulations on palpal lobes with shallow (not deep) notches.

Tolerance 9
Distribution CA, OR, WA, NV, AZ, Baja