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Near Healdsburg, Sonoma County, California, USA
February 14, 2015
Size: 12 mm
Found in a Russian River gravel pool.

Images of this individual: tag all
1080 1080


Moved from ID Request.

a guess
looks like a dytiscid larva by comparison to pictures in my old copy of McCafferty"s Aquatic Entomology (1). It's a ringer for this one already on BugGuide

more specific location?

It was found in a small gravel pool of the Russian River near Healdsburg, CA

excellent, thanks
now please put it in the City field where that info belongs

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