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Male Baetis bicaudatus (BWO) Mayfly Nymph Pictures

 This specimen was collected along with a female which was quite a bit larger, different in color, but otherwise seemed the same morphologically.

This mayfly was collected from Holder Creek on April 12th, 2021 and added to Troutnut.com on April 13th, 2021.

The darkened hind wing pad is clearly visible in this one.  Male Baetis bicaudatus (BWO) Mayfly Nymph from Holder Creek in Washington
The darkened hind wing pad is clearly visible in this one.

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