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Updates from June 16, 2018

Photos by Troutnut from the South Fork Snoqualmie River in Washington

 From the South Fork Snoqualmie River in Washington.
Date TakenJun 16, 2018
Date AddedJun 18, 2018
AuthorTroutnut
CameraNIKON 1 AW1
 From the South Fork Snoqualmie River in Washington.
Date TakenJun 16, 2018
Date AddedJun 18, 2018
AuthorTroutnut
CameraNIKON 1 AW1
 From the South Fork Snoqualmie River in Washington.
Date TakenJun 16, 2018
Date AddedJun 18, 2018
AuthorTroutnut
CameraNIKON 1 AW1
 From the South Fork Snoqualmie River in Washington.
Date TakenJun 16, 2018
Date AddedJun 18, 2018
AuthorTroutnut
CameraNIKON 1 AW1
 From the South Fork Snoqualmie River in Washington.
Date TakenJun 16, 2018
Date AddedJun 18, 2018
AuthorTroutnut
CameraNIKON 1 AW1

Closeup insects by Troutnut from the South Fork Snoqualmie River in Washington

Female Rhithrogena virilis Mayfly DunFemale Rhithrogena virilis  Mayfly Dun View 6 PicturesI'm guessing this one is Rhithrogena virilis based on collection of a male spinner of similar size and body configuration during the same trip.
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 23, 2018
Female Pictetiella expansa Stonefly AdultFemale Pictetiella expansa  Stonefly Adult View 12 PicturesBased on photos, this specimen seems to key out (using Merritt & Cummins 4th Edition) to Pictetiella expansa, but some of the characteristics aren't 100 % clear. However, that species is listed as occurring near Puget Sound and the head markings are similar to (albeit not a perfect match for) those of a male from Colorado in the scientific literature here: https://www.researchgate.net/figure/Head-and-pronotum (Pronotum: The top of the insect prothorax.)-dorsal (Dorsal: Top.)-Pictetiella-expansa-Boulder-Co-Colorado-North-Fork-Middle_fig1_315373449
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on July 3, 2018
Male Rhithrogena virilis Mayfly SpinnerMale Rhithrogena virilis  Mayfly Spinner View 8 PicturesI'm guessing this is Rhithrogena virilis based on resemblance to a similar specimen collected last year.
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 23, 2018
Acari (Mites) Mite AdultAcari (Mites) Arthropod Adult View 3 Pictures
Collected June 16, 2018 from the South Fork Snoqualmie River in Washington
Added to Troutnut.com by Troutnut on June 18, 2018

Most recent comments on this post (latest on top)

MartinlfJune 19th, 2018, 3:16 pm
Moderator
Palmyra PA

Posts: 2885
Great photos! Thanks, Jason.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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