Aquatic Insect #10 ID?

Discussion in 'Fly Fishing Entomology' started by Taxon, Aug 1, 2012.

  1. Taxon

    Taxon Moderator Staff Member

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    [​IMG]

    [​IMG]

    This aquatic insect was captured late this afternoon (Tuesday) in a butterfly net from a fishing pier at a city park on Lake Washington. It was captured immediately after emerging as it and flew up to approximately 5 feet off the water's surface. As can be seen in the 1st photo, its body length was ~4 mm (~1/6"). The photos were taken via a USB digital camera mounted on the trinocular port of my stereo microscope. Can you identify it by any of the following:

    Order common name
    Order taxonomic name
    Family common name
    Family taxonomic name
    Genus common name
    Genus taxonomic name
    Lifestage
    Sex
     
  2. zen leecher aka bill w

    zen leecher aka bill w born to work, forced to fish

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    I'm glad I'm not a "bug guy" where I have to take pictures of every stinkin' bug I find. It's a piddling little white mayfly that's probably too hard to tie or fish. :rolleyes: <do not overlook the smiley>

    There, my guess is stinkin' little white mayfly that's too small to tie and too hard to fish.

    There was a picture of a little sulfur posted here I think within the last 4 months. It also was a 4mm one and I wondered why the local sulfurs were so small. I see the last little white mayfly was a three tailed one. Guess these aren't related.
     
  3. Taxon

    Taxon Moderator Staff Member

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    hi zen leecher,
    Yes, that would certainly be pathetic; just count your blessings.;)

    Perhaps, but some fly fishers like the challenge of catching a nice fish on a size #24 imitation.

    Well, I would consider them be related, but in a different family.

    IDENTIFICATIONS

    Order common name: Mayfly (zen leecher)
    Order taxonomic name: ???
    Family common name: ???
    Family taxonomic name: ???
    Genus common name: ???
    Genus taxonomic name: ???
    Lifestage: ???
    Sex: ???
     
  4. zen leecher aka bill w

    zen leecher aka bill w born to work, forced to fish

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    That fly is probably the curse of dry fly fishermen.
     
  5. zen leecher aka bill w

    zen leecher aka bill w born to work, forced to fish

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    Is this a Trico aka the white winged curse?
     
  6. Taxon

    Taxon Moderator Staff Member

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    hi zen leecher-

    No, it is not of genus Tricorythodes, which have (3) tails in their winged lifestages. Hint: eyes.
     
  7. Bob Newman

    Bob Newman Active Member

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    IDENTIFICATIONS

    Order common name: Mayfly (zen leecher)
    Order taxonomic name: Ephemeroptera
    Family common name: Blue wing olive
    Family taxonomic name: Heptagenioidae
    Genus common name: Pseudocloeon
    Genus taxonomic name: propinquum
    Lifestage: sub-imago
    Sex: female
     
  8. Taxon

    Taxon Moderator Staff Member

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    Hi Bob,

    Ephemeroptera is correct. Blue-winged Olive is correct. Don't believe Heptagenioidae is a valid taxonomic name, and if you meant Heptageniidae, that is not correct. Neither Pseudocloeon nor propinquun are correct. However that's in the correct family.

    IDENTIFICATIONS

    Order common name: Mayfly (zen leecher)
    Order taxonomic name: Ephemeroptera (Bob Newman)
    Family common name: ???
    Family taxonomic name: ???
    Genus common name: Tiny Bluewinged Olive (Bob Newman/Taxon)
    Genus taxonomic name: ???
    Lifestage: ???
    Sex: ???
     
  9. Taxon

    Taxon Moderator Staff Member

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    Hmm, was this one too difficult?

    IDENTIFICATIONS

    Order common name: Mayfly (zen leecher)
    Order taxonomic name: Ephemeroptera (Bob Newman)
    Family common name: Small Swimmer Mayfly (Taxon)
    Family taxonomic name: Baetidae (Taxon)
    Genus common name: Tiny Bluewinged Olive (Bob Newman/Taxon)
    Genus taxonomic name: Centroptilum (Taxon)
    Species taxonomic name: conturbatum (Taxon)
    Lifestage: subimago (Taxon)
    Sex: male (Taxon)
     
  10. Matt Baerwalde

    Matt Baerwalde ...

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    Yeah, for me it was. So what's the hint about the eyes?
     
  11. Taxon

    Taxon Moderator Staff Member

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    Hi Matt,

    [​IMG]

    Hi Matt,

    The compound eyes of the winged lifestages of males of family Baetidae are unique in that each of their two compound eyes are composed of two elements, a lower element which is black in this photo, and an upper "turbinate" element which is mounted on a stalk, although the stalk itself is not is obvious on this genus.
     

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