November 15, 2018

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Old 06-16-2018, 02:38 PM
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Default Help with Mayfly Identification

I caught a great fishing opportunity on one of the NH trout ponds around the 10th of June. During the day, things were very slow and I had no luck fishing. Water was getting warm with bright Sun. Dries, Nymphs, streamers, nothing worked. That evening I saw some nice rises in a shallow area and figured they must be shiners eating water bugs, but checked it out anyway, and found Ephemera Guttulata all over the place, laying eggs or lying spent on the water. The bugs were about 1 inch long. The trout were going nuts. I caught a number of them on the surface and then it was all over in half an hour. The next morning I had a totally black mayfly land on my hand. It had a black thorax with blackish wings and I have no idea what it might be as my books do not describe anything that is all black. Does anyone have an idea of what I may have seen? It was fairly large, about 3/4" long. It had two tails. I did not save it which was a big mistake.
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Old 06-20-2018, 07:47 PM
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I am surprised that no one has posted any ideas on what mayfly I saw. I did some more research and found something in Ames book on New England insect identification and hatches. I am pretty sure I saw a very dark version of an Isonychnia Bi Color. or Isonychnia Sadleri. The size was about right, and I can find no other mayfly that looks as dark as this one.
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