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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This one seems to tentatively key to Holocentropus, although I can't make out the anal spines in Couplet 7 of the Key to Genera of Polycentropodidae Larvae nor the dark bands in Couplet 4 of the Key to Genera of Polycentropodidae Larvae, making me wonder if I went wrong somewhere in keying it out. I don't see where that could have happened, though. It might also be that it's a very immature larva and doesn't possess all the identifying characteristics in the key yet. If Holocentropus is correct, then Holocentropus flavus and Holocentropus interruptus are the two likely possibilities based on range, but I was not able to find a description of their larvae.
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Taxon on May 3, 2014May 3rd, 2014, 4:54 pm EDT
Mayfly Species Distribution Maps are now available for each mayfly species which has been recorded in a USA state or CAN province. This an extension of my ongoing efforts to provide a comprehensive referenced record of mayfly species geographic distribution by USA state and CAN province.
Entoman on May 3, 2014May 3rd, 2014, 5:33 pm EDT
Tremendous job, Roger - and with references too!! Thank you!
"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 3, 2014May 3rd, 2014, 5:47 pm EDT
Wow! Thank you, Roger! That's a helpful step in making such information accessible.
Crepuscular on May 3, 2014May 3rd, 2014, 7:18 pm EDT
Nice Rodger. Thanks. The lists of publications is especially nice.
Jmd123 on May 4, 2014May 4th, 2014, 12:49 am EDT
WOW Roger, extremely impressive. Man, Hexagenia limbata sure has a wide distribution! I saved this to my Favorites in case I need to ID mayflies for consulting work (I wish). Thanks!
Jonathon
Jonathon
No matter how big the one you just caught is, there's always a bigger one out there somewhere...
Taxon on May 4, 2014May 4th, 2014, 4:58 am EDT
Kurt, Paul, Eric, Jonathan-
Thanks for your kind words.
Thanks for your kind words.
Creno on May 4, 2014May 4th, 2014, 9:19 am EDT
That is nice Roger - wish I worked on mayflies :-)
Taxon on May 5, 2014May 5th, 2014, 7:34 am EDT
That is nice Roger - wish I worked on mayflies :-)
Hi Dave,
Thanks. My intent is to do the same kind state/province mapping for caddisfly distribution.
Taxon on May 5, 2014May 5th, 2014, 7:41 am EDT
As usual Roger absolutely superb effort. Thank you for all your hard work and what you do, so everybody can learn and find out about the natural wonders of our world.
Hi Mack,
Thanks, it's certainly my pleasure.
Taxon on May 5, 2014May 5th, 2014, 12:57 pm EDT
Hi Mack-
Although I appreciate the sincerity of your opinion, I am certainly not deserving of it. Please say no more about it, as you are embarrassing me something awful. :-)
Although I appreciate the sincerity of your opinion, I am certainly not deserving of it. Please say no more about it, as you are embarrassing me something awful. :-)
Taxon on May 5, 2014May 5th, 2014, 2:13 pm EDT
your profile picture has not changed colors......"Yet".....LOL.
:-)
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