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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Male Paraleptophlebia sculleni Mayfly Spinner Pictures

This specimen (and a few others I collected but didn't photograph) appear to represent the first finding of Paraleptophlebia sculleni outside the Oregon Cascades, although it is not a monumental leap from there to the Washington Cascades. The key characteristics are fairly clear.

Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Dorsal view of a Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
This specimen had three fragile tails, one of which came off during handling.

Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Ventral view of a Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
This ventral view matches Figure 14 from Harper and Harper 1986, leading to the identification of Paraleptophlebia sculleni.

Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington
Ruler view of a Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington The smallest ruler marks are 1 mm.
Lateral view of a Male Paraleptophlebia sculleni (Leptophlebiidae) Mayfly Spinner from Mystery Creek #249 in Washington

This mayfly was collected from Mystery Creek #249 in Washington on July 25th, 2019 and added to Troutnut.com by Troutnut on July 26th, 2019.


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Male Paraleptophlebia sculleni Mayfly Spinner Pictures

Collection details
Location: Mystery Creek #249, Washington
Date: July 25th, 2019
Added to site: July 26th, 2019
Author: Troutnut
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