California Department of Fish and Wildlife
Aquatic Biological Assement

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Cordulegastridae Level 1 Level 2

Cordulegastridae

Key Characters

Spoon-shaped prementum and palpal lobes of labium, sometimes with dorsal premental setae; palpal lobe with large, irregular dentations. Tooth-like cleft (ligula) on prementum.
Tolerance 3
Distribution CA, OR, WA, NV, AZ