What's That Bug? does not endorse extermination

Subject: Strange prehistoric water dweller
Location: Little grass valley reservoir california
July 2, 2017 7:21 pm
This bug was caught chasing my husband as we swam in a lake. It has what looks like feathers along it’s back side and pinchers.
Signature: However

Mayfly Nymph

This is the aquatic nymph or naiad of a Mayfly in the order Ephemeroptera.  Anglers often devote major portions of websites to insects used as bait, so we found nice images that match yours posted to Fly Fishing God and Trout Nut as well as on BugGuide.  According to BugGuide:  “most nymphs develop in streams and rivers that are well-oxygenated and relatively free of pollution; some species develop in lakes or ponds, usually in shallow water where the oxygen content is highest.”

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What's That Bug? does not endorse extermination
Location: Little Grass Valley, California
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