California Department of Fish and Wildlife
Aquatic Biological Assement

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Macromiidae Level 1 Level 2

Macromiidae

 

Key Characters

Head with upwardly curved frontal horn between bases of antennae. Long legs, with hind femur extending past abdominal segment 8. Macromia only genus in CA region.

Tolerance 2
Distribution CA, OR, WA, NV, AZ