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Stoneflies have a generalised anatomy, with few specialised features. They have simple mouthparts with chewing mandibles, long, multi-segmented antennae, large compound eyes and two or three ocelli. The legs are robust, with each ending in two claws. The abdomen is relatively soft, and may include remnants of the nymphal gills even in the adult. Both nymphs and adults have long paired cerci projecting from the tip of their abdomens.[5] (wikiipedia)


bank of river


Not sure what the subspecies is.

No species ID suggestions

Oregon, USA

Lat: 45.61, Long: -117.62

Spotted on Jun 19, 2010
Submitted on Sep 20, 2012

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