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Mayfly confusion

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On a recent trip to a northeast pa creek, Tricos and caddis were hatching an we found another bigger mayfly coming off that I’m having trouble identifying. I’ll try and add a picture but it doesn’t seem to ever want to work on here.

Body size was about #16
Body was white/clear
Thorax was tan,light brown
Eyes were huge and lime green.
2 very long tails

Posted on: 2018/10/21 17:29


Re: Mayfly confusion

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Can’t post a picture even after I downloaded a jpeg converter. it’s 2018 can someone look into getting this site up to speed with the entire rest of the Internet.

Posted on: 2018/10/21 17:55

Edited by Dave_W on 2018/10/21 20:21:26


Re: Mayfly confusion

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A male spinner of some sort. Can't help you with the green eyes at that size at this time of the year.

Posted on: 2018/10/21 19:36
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Re: Mayfly confusion

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My guess is a steno of some variety. Light Cahill to most guys.

( and check to see that you adequately reduced the file size to 150k when posting pics)

Posted on: 2018/10/21 19:39
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Re: Mayfly confusion
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Quote:

mcarney99 wrote:
Can’t post a picture even after I downloaded a jpeg converter. it’s 2018 can someone look into getting this site up to speed with the entire rest of the Internet.


Your photos need to be under 150 kb in order to upload them to this site.

Posted on: 2018/10/21 20:22


Re: Mayfly confusion

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Quote:

DaveS wrote:
My guess is a steno of some variety. Light Cahill to most guys.


That was my thought with the green eyes, but it's too late in the year and size 16 is too small. (Unless a full summer of high water interfered with hatches.)

Posted on: 2018/10/22 7:47
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Re: Mayfly confusion

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paraleps (blue quill) hatch in fall along with earlier in season

Posted on: 2018/10/22 8:07
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Re: Mayfly confusion
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There's not a whole lot of different mayflies hatching right now. Could be a Hebe Spinner. Right time of year and size. Exact colors of insects often vary from stream to stream. Also colors may change a bit with each stage > dun hatching and molting into spinner leading into the end of their life cycle.

Hebe Pics > Troutnut

Attach file:



jpg  Hebe Spinner.jpg (103.46 KB)
53_5bcdd6a8da220.jpg 816X698 px

jpg  Hebe Dun.jpg (41.88 KB)
53_5bcddbc0acb20.jpg 591X816 px

Posted on: 2018/10/22 9:56

Edited by afishinado on 2018/10/22 10:16:36


Re: Mayfly confusion

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If someone sends me pm that can upload picture I can text them the pictures I got. I just can’t see to resize them on my phone. I’d love to get them up here and get an exact answer

Posted on: 2018/10/22 16:45


Re: Mayfly confusion

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PM sent

Posted on: 2018/10/22 18:46
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Re: Mayfly confusion

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Here's the bug in question:

Attach file:



jpeg  IMG_7596.JPEG (54.21 KB)
3277_5bce5bdb29a5f.jpeg 553X487 px

Posted on: 2018/10/22 19:23
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Hatches come and go of their own accord, but work will wait for you to get back.


Re: Mayfly confusion
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Wow. Interesting - looks transparent and definitely big green eyes with mottled legs.

Hhhmmm.... Beats me.

It looks like many of the mystery mayflies I see around street lights near the Susky on summer evenings; lots of different white or whitish spinners.

Posted on: 2018/10/22 22:34


Re: Mayfly confusion

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I've seen many of those exact mayflies where I live this time of the year. I have no idea what it is but I'm terrible at identifying most all mayflies. Insect ID is a very small part of my fly fishing...I wish that I was better at it.

Posted on: 2018/10/23 7:15


Re: Mayfly confusion
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Likely a Cream Cahill (Maccaffertium modestum) Spinner

http://www.troutnut.com/specimen/295

http://www.troutnut.com/specimen/547


Attach file:



jpg  Cream Cahill Dun.jpg (33.70 KB)
53_5bcf05e68cd42.jpg 816X457 px

jpg  Cream Cahill Spinner.jpg (45.36 KB)
53_5bcf05ed71422.jpg 816X467 px

Posted on: 2018/10/23 7:28


Re: Mayfly confusion
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Quote:

afishinado wrote:
Likely a Cream Cahill (Maccaffertium modestum) Spinner



I think we may have a winner.

This one appears to have a completlely clear wing which is why I didn't think Cahill. However, the photo provided may have the wing folded back in such a way as to obscure the markings. And the eyes and brightly colored thorax are pronounced. In Afish's photo from Troutnut, the dun has the bright green eyes.

Still a tough call, but I think Cream Cahill is probably correct.

Thanks DaveS for helping with the photo - good stuff.

Posted on: 2018/10/23 7:58



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