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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.

Recent Discussions of this Nymph

stupid question 2 Replies »
Posted by Brian314 on Feb 25, 2022
Last reply on Feb 27, 2022 by Brian314
What are the two red-ish features at the top of the head called ?
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