California Department of Fish and Wildlife
Aquatic Biological Assement

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Ephemeroptera Odonata Plecoptera Hemiptera Megaloptera Neuroptera Trichoptera Lepidoptera Coleoptera Diptera Non-Insects

Gerridae Level 1 Level 2



Key Characters

Elongated hind femur extending beyond abdomen, middle legs closer to hind legs than forelegs, tarsal claws pre-apical. Not considered a benthic organism.

Tolerance N/A
Distribution CA, OR, AZ