Delaware River Club
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  1. #1
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    help identify this insect

    Does anyone know what mayfly this is?
    Picked it up off a Catskill stream this past Saturday.






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    Re: help identify this insect

    I believe that it is a Slate Drake " Isonychia bicolor also known as a Mahogany Dun"


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    Re: help identify this insect

    I don't thik it is a Slate Drake, this is a Slate Drake, notice the difference in the wings.


    Hell no and it aint over now.......

  4. #4
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    Re: help identify this insect

    Quote Originally Posted by Trouser Trout View Post
    I don't thik it is a Slate Drake, this is a Slate Drake, notice the difference in the wings.
    I defintily think it is an ISO


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    Re: help identify this insect

    tomfly, i think you're right.

    Hell no and it aint over now.......

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    Re: help identify this insect

    It can't be an Iso, it lacks light colored legs and veination in the wings. It is also a bit short from the pix to be an Iso as well as the other two variables missing. With its tails missing, it makes identification more difficult, but it is obviously in the imago (spinner) stage. Although I haven't reached for my field guide, this mayfly is likely one of the hundreds of smaller (quantity, not size) hatches we have in our streams that often go unnoticed by both the fish and the anglers.

    A sinking fly is closer to Hell - ​Unknown

  7. #7
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    Re: help identify this insect

    Based on the scalloped hind wing (and the stubby body) it looks like a Baetisca (family Batiscidae).

    Here is a link to them at troutnut.com:
    http://www.troutnut.com/hatch/37/May...mored-Mayflies


  8. #8
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    Re: help identify this insect

    LEPTOPHLEBIIDAELeptophlebianebulosa



    Pattern---Blue Dun
    Body--- Dun/ Dk. Oliveish
    Wing--- Dun
    Legs/Hackle---Dk.Dun
    Tails--- Dk. dun

    sandfly/bob
    Flyfishing instructor, Tying and Shop owner
    www.bigmeadowsflyshop.com
    N.J.B.B.A.2215
    formally Bucks now Tioga Co. Pa.
    there's a fine line between Sane and Insane !

    I did not escape----They gave me a day pass !!

  9. #9
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    Re: help identify this insect

    Quote Originally Posted by sandfly View Post
    LEPTOPHLEBIIDAELeptophlebianebulosa






    I don't think so. The rear wing on almost all leptophlebia/paraleptophlebia is oval/football shaped. The rear wing on this one is triangular. The Leptophlebiidae tend to be longer insects, this one is stubby.

    As Rusty Spinner pointed out, lacking tails makes identification difficult.

    The guess of Baetisca seems like a good one, except the fore legs are too long, I think.

    Bob

  10. #10
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    Taxon is offline Fishizzle, I use worms but I'm looking to upgrade!
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    Re: help identify this insect

    Quote Originally Posted by chromefinder View Post
    Does anyone know what mayfly this is?
    Yes, I sure do. jmoore and redeitz are absolutely correct. It is a Baetisca male imago, either B. berneri or B. carolina, as they are the only Baetisca species known from PA. With regard to redeitz's concern about the length of the forelegs, the one he probably saw on TroutNut.com was a female imago. However, the male imago has greatly extended forelegs, just like those in the above photo.

    Best regards,


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    Re: help identify this insect

    Quote Originally Posted by sandfly View Post
    LEPTOPHLEBIIDAELeptophlebianebulosa




    You got allergies too? God bless you.

    Listen To The River Sing Sweet Songs To Rock My Soul...

  12. #12
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    Re: help identify this insect

    Size 16 Adams CDC Comparadun...all you need to know


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