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 specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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Kinzua on Feb 7, 2009February 7th, 2009, 1:20 am EST
Does any one know if this mayfly is found outside of New Zealand? In particular, is it found in the streams of Hokkaido Japan?
Thanks in advance,
John
Thanks in advance,
John
Taxon on Feb 7, 2009February 7th, 2009, 4:01 am EST
John-
I doubt it, but suggest you pose your question to:
Peter M. Grant, Department of Biological Sciences, Southwestern Oklahoma State University, 100 Campus Drive, Weatherford, Oklahoma 73096-3098 USA, phone (580) 774-3294, fax (580) 774-7140, email peter.grant@swosu.edu.
I doubt it, but suggest you pose your question to:
Peter M. Grant, Department of Biological Sciences, Southwestern Oklahoma State University, 100 Campus Drive, Weatherford, Oklahoma 73096-3098 USA, phone (580) 774-3294, fax (580) 774-7140, email peter.grant@swosu.edu.
Konchu on Feb 7, 2009February 7th, 2009, 10:28 am EST
A checklist of Japanese mayflies can be found on this webpage:
http://www.famu.org/mayfly/mfbib_hi.php.
Scroll down to:
Ishiwata S-I. 2001. A checklist of Japanese Ephemeroptera. Pages 55-84 in Bae YJ (ed.) The 21st Century and Aquatic Entomology in East Asia. Proceedings of the 1st Symposium of Aquatic Entomologists in East Asia. The Korean Society of Aquatic Entomology, Korea.
A PDF file is available for download there.
http://www.famu.org/mayfly/mfbib_hi.php.
Scroll down to:
Ishiwata S-I. 2001. A checklist of Japanese Ephemeroptera. Pages 55-84 in Bae YJ (ed.) The 21st Century and Aquatic Entomology in East Asia. Proceedings of the 1st Symposium of Aquatic Entomologists in East Asia. The Korean Society of Aquatic Entomology, Korea.
A PDF file is available for download there.
Taxon on Feb 8, 2009February 8th, 2009, 3:26 am EST
John-
Based on the Checklist of Japanese Mayflies which Konchu located, the only Oligoneuriid found in Japan is Oligoneuriella rhenana, and it is apparently only found on the island of Honshu.
Based on the Checklist of Japanese Mayflies which Konchu located, the only Oligoneuriid found in Japan is Oligoneuriella rhenana, and it is apparently only found on the island of Honshu.
Kinzua on Feb 8, 2009February 8th, 2009, 4:23 am EST
Taxon and Konchu,
Thank you for your help! Ephemeroptera Galactica - WOW, what a great resource!
John
Thank you for your help! Ephemeroptera Galactica - WOW, what a great resource!
John
Taxon on Feb 10, 2009February 10th, 2009, 11:11 am EST
John-
Japanese Mayfly Distribution should be a bit easier to use than the .pdf in case you should be curious about the distribution of any more Japanese mayfly species.
Japanese Mayfly Distribution should be a bit easier to use than the .pdf in case you should be curious about the distribution of any more Japanese mayfly species.
Kinzua on Feb 14, 2009February 14th, 2009, 8:59 am EST
Double WOW! and thanks.
John
John
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