A couple Barnes Creek (Lake Crescent trib) insects

Discussion in 'Fly Fishing Entomology' started by Jim Speaker, Jun 23, 2013.

  1. Jim Speaker

    Jim Speaker Active Member

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    The lid is a standard size pickle jar lid, to give you scale. This was a good sized "blue wing olive" - but not the usual I'm used to seeing as it had three tails. It was also fairly large, a solid #16 or slightly larger. The dun wings were, as you can see, pretty large as well. Can you precisely identify this one?

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    And, turning over rocks revealed a number of immature nymphs. This one, however, seemed to be ready-to-go with a wing case that was looking like it was darkening. I was thinking Ephemerella, but it doesn't seem elongated enough and had more pronounced gills than I'd have expected based on images I've seen. The width of the head, pronounced eyes, and the pronounced gills now have me thinking it is some sort of Epeorus (yellow quill) - and there were in fact good sized yellow mayflies coming off at about a size 14 that I was thinking may very well be yellow quills. So, how about this nymph?

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  2. Taxon

    Taxon Moderator Staff Member

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    Hi Jim-

    I believe your winged mayfly to be of family Ephemerellidae and of genus Drunella, and your mayfly nymph to be of family Heptageniidae, not genus Epeorus as they have only 2 tails, but rather, Rhithrogena robusta. Incidentally, good on you for taking the pickle jar lid.:)
     
  3. Jim Speaker

    Jim Speaker Active Member

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    Drunella, huh? So, these were not BWOs of some sort, but rather small, lesser green drakes? I'd guess, for these western waters and the size of this one, and given some photos I just looked up, Drunella flavilinea? Very interesting! Thank you!

    Aha, yes, I see that Epeorus indeed have just two tails, I wasn't paying close enough attention. And, the photo I got matches well with this one from Bob Henricks (http://www.flickr.com/photos/56361992@N07) on Flickr (man, this guy has a lot of bug photos, it's pretty apparent he has a bunch of aquariums full of insects, and he's nice too, having set the rights on the images so they can be used in my online hatch charts):


    [​IMG]


    Thanks Taxon, cheers.
     
  4. Gary Knowels

    Gary Knowels Active Member

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    I was just reading about Drunella the other day. I thought that flavs didn't really start coming off until a little later into summer? Could it be drunella doddsii?
     
  5. Jim Speaker

    Jim Speaker Active Member

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    Per your suggestion! It has a dedicated pocket in my Filson vest.
     
    Gary Knowels likes this.
  6. Taxon

    Taxon Moderator Staff Member

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    That is possible, as the following Drunella species are known to be present in Clallam County:

    Drunella coloradensis Boulder Cr
    Drunella coloradensis Boundary Cr
    Drunella coloradensis Ennis Cr
    Drunella coloradensis Kugel Cr
    Drunella coloradensis Morse Cr
    Drunella coloradensis South Branch Little R
    Drunella doddsi Boundary Cr
    Drunella doddsi Cook Cr
    Drunella doddsi Cool Cr
    Drunella doddsi Couger Cr
    Drunella doddsi Deep Lake Cr
    Drunella doddsi Dungeness R
    Drunella doddsi Jimmy Come Lately Cr
    Drunella doddsi Lake Sutherland
    Drunella doddsi Morse Cr
    Drunella doddsi Mud Cr
    Drunella doddsi Salt Cr
    Drunella doddsi South Branch Ellen Cr
    Drunella doddsi South Branch Little R
    Drunella doddsi South Fork Soleduck Cr
    Drunella doddsi Steamboat Cr
    Drunella doddsi Upper Deep Cr
    Drunella flavilinea Morse Cr
    Drunella flavilinea Soleduck R
    Drunella grandis Dungeness R
    Drunella grandis East Fork Dickey R
    Drunella grandis Morse Cr
    Drunella spinifera Boulder Cr
    Drunella spinifera Ellen Cr
    Drunella spinifera Ennis Cr trib
    Drunella spinifera Indian Cr
    Drunella spinifera Lake Deep Cr
    Drunella spinifera Mud Cr
    Drunella spinifera Soleduck R
    Drunella spinifera South Branch Little R
     
  7. Jim Wallace

    Jim Wallace Smells like low tide

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    Ok, I ascertain that there's 2 of the above Drunellas (doddsi and grandis) in the Dungeness R. Do those have "common" names that might ring a bell? I plan to be fishing the upper river this summer.

    I think I know my pickle jar lids, though. From the blue rim, I'd say that was from a Vlasic brand pickle jar.
     
  8. Jim Speaker

    Jim Speaker Active Member

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    I believe doddsi are usually called lesser green drakes, while grandis are simply called western green drakes.

    Yes, Vlasic
     
  9. Taxon

    Taxon Moderator Staff Member

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    Hi Jim-

    In their book, Western Mayfly Hatches, Rick Hafele and Dave Hughes refer to them thusly:

    Greater Drunella
    (Western Green Drakes)
    D. grandis, D. doddsi (now D. doddsii) , D. spinifera
    Smaller Drunella
    (Flavs, Lesser Green Drakes)
    D. flavilinea, D. coloradensis
     
  10. Jim Wallace

    Jim Wallace Smells like low tide

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    Thanks Robert. I need to pick up a copy of that book. And maybe any other field guides to Western bugs and hatches.

    But today is a surf day. :cool: gotta go!
     

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