Hex Mayflies
Hexagenia limbata
The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
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As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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Entoman on May 30, 2012May 30th, 2012, 6:40 pm EDT
Congratulations on the paper, Luke! Thanks for all your hard work and sharing it with us.
Well, I guess it has to be opened. No sense us anglers pretending it's not there (though I can't say I'm looking forward to the editing on the hatch pages that's probably gonna be required). :)
This study certainly presents a can of worms.
Well, I guess it has to be opened. No sense us anglers pretending it's not there (though I can't say I'm looking forward to the editing on the hatch pages that's probably gonna be required). :)
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman
PaulRoberts on May 31, 2012May 31st, 2012, 4:56 am EDT
Wow! Thanks, Luke. It's a big world, esp when we're looking at small critters.
Jmw975 on May 31, 2012May 31st, 2012, 6:34 pm EDT
Thanks for posting this here Luke, and thanks to everyone who provided specimens for the project through Luke!
Jeff
Jeff
Taxon on Jun 1, 2012June 1st, 2012, 5:48 pm EDT
Here are some now published results from the request I put out a few years ago. This study certainly presents a can of worms. Thank you to all who helped by sending a few specimens. I regret we could not name everyone in text. Happy reading.
http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0038063
Very nice, Luke. The paper provides (116) State and Province distributions of which I was previously unaware. Although that's not the purpose of the paper, it's extremely helpful to me none-the-less, and I really appreciate your having shared it. See N. American Mayfly Distribution Query.
Jodea on May 10, 2013May 10th, 2013, 8:02 am EDT
hi Konchu ,, could you cast your eye on this for me , its may especially for collecting mayfly .. please watch the intro video and give your honest opinion on it if/when you have time
www.thejodea.com
thank you
Jodea
www.thejodea.com
thank you
Jodea
Jodea on May 10, 2013May 10th, 2013, 8:05 am EDT
here is the video link .; perhaps copy and paste it as im not yet sure how to attach the klink here ... thanks
http://www.youtube.com/watch?v=8GRgB43lvG8
http://www.youtube.com/watch?v=8GRgB43lvG8
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