California Department of Fish and Wildlife
Aquatic Biological Assement

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Nepidae Level 1 Level 2

Nepidae

 

Key Characters

"Water scorpions," elongate, sticklike and slowmoving -- thus very cryptic.Raptorial fore legs. Breathe through cylindrical respiratory siphon. Predators of mosquito larvae, tadpoles, etc.
Tolerance unknown
Distribution CA, OR, AZ