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Male Tricorythodes (Tricos) Mayfly Spinner Pictures



This mayfly was collected from the Henry's Fork of the Snake River on August 11th, 2018 and added to Troutnut.com on June 12th, 2019.

Every ruler mark is 1/16 inch.  Male Tricorythodes (Tricos) Mayfly Spinner from the Henry's Fork of the Snake River in Idaho
Every ruler mark is 1/16 inch.

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