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Male Paraleptophlebia sculleni Mayfly Spinner Pictures

 For a species not yet reported in my state, I've been surprised to find these in two different locations lately. I was tempted to think they're the more common Paraleptophlebia debilis, but the characteristic big dorsal (Dorsal: Top.) bump on the claspers (
The claspers of this male Hexagenia atrocaudata mayfly spinner are highlighted in green.
The claspers of this male Hexagenia atrocaudata mayfly spinner are highlighted in green.
Clasper: The claspers, also known as forceps, are a pair of appendages beneath the tip of the abdomen of male mayfly adults, which are used to grab onto the female while mating.
)
just isn't present.


This mayfly was collected from the Middle Fork Snoqualmie River on August 4th, 2019 and added to Troutnut.com on August 5th, 2019.


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