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Sweltsa onkos (Sallfly) Stonefly Adult Pictures

 I'm just guessing this is Chloroperlidae, since it's little and yellow. If anyone has a less haphazard identification, feel free to post it.

This stonefly was collected from Mystery Creek #62 on May 15th, 2007 and added to on May 18th, 2007.

Recent Discussions of this Adult

Egg laying behavior 1 Reply »
Posted by Brookyman on Feb 27, 2014
Last reply on Feb 27, 2014 by Taxon
This about all stonefly adults in general. I only picked this specie cause I am tying some for dry fly use right now. What is the typical or preferred water type where stoneflies lay their eggs. I have seen some of them drop to lay eggs at the head of a pool, and others at the tail area near the bank. Do they more or less return to runs, and riffles or quite pockets behind boulders ???

ReplyOntario Sallfly
Posted by GONZO on Sep 9, 2008
I believe this is probably Sweltsa onkos. There are three Sweltsa species commonly listed for most of the Northeast (onkos, naica, and lateralis), and their individual pronotum/head markings seem rather distinctive.

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