mayfly on my automobile

Discussion in 'Fly Fishing Entomology' started by Travis Bille, Apr 13, 2014.

  1. Travis Bille

    Travis Bille Active Member

    Joined:
    Oct 12, 2010
    Messages:
    697
    Media:
    9
    Likes Received:
    388
    Location:
    McKinleyville, CA
    Found this pretty big feller on the hood of my car this evening. This is by far the biggest mayfly I have ever seen around these parts. Its a camera picture, so excuse the quality.

    I put a dime next to it for a size reference. Its quite a pretty bug

    Any guesses what it is? I would guess march brown, but I don't have my hatch guide to western streams book handy as it was stolen by my 2 year old daughter so she could flip through pages saying "BUGS! FLIES!"

    IMG_20140413_193612_019.jpg IMG_20140413_193705_950.jpg
     
  2. Taxon

    Taxon Moderator Staff Member

    Joined:
    Aug 22, 2004
    Messages:
    976
    Likes Received:
    118
    Location:
    Mercer Island, WA
    Travis-

    I believe this male imago to be of genus Rhithrogena. And based on its body length, which I estimate to be 13.425 mm based on it being 3/4 the diameter of a dime (17.9 mm), it is likely to be R. flavianula. So, your guess of (Western) March Brown is spot on.
     
    underachiever likes this.
  3. Teenage Entomologist

    Teenage Entomologist Gotta love the pteronarcys.

    Joined:
    Aug 12, 2013
    Messages:
    703
    Media:
    10
    Likes Received:
    252
    Location:
    Red Bluff, CA
    Travis, definetely a March Brown. They are hatching in my area also.
     
  4. Travis Bille

    Travis Bille Active Member

    Joined:
    Oct 12, 2010
    Messages:
    697
    Media:
    9
    Likes Received:
    388
    Location:
    McKinleyville, CA
    Whoo hoo! I love it when I guess right. Thanks guys
     
    Teenage Entomologist likes this.
  5. Teenage Entomologist

    Teenage Entomologist Gotta love the pteronarcys.

    Joined:
    Aug 12, 2013
    Messages:
    703
    Media:
    10
    Likes Received:
    252
    Location:
    Red Bluff, CA
    Best insect book ever!
    image.jpg
     

Share This Page