Header image
Enter a name
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.

Dorsal view of a Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington
Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.
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.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Female Cinygmula (Dark Red Quill) Mayfly Spinner Pictures

This female was collected from the same spinner cloud as this male.

Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Lateral view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Dorsal view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Ventral view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana
Each length mark is 1/16 inch.

Ruler view of a Female Cinygmula (Heptageniidae) (Dark Red Quill) Mayfly Spinner from Rock Creek in Montana The smallest ruler marks are 1/16".

This mayfly was collected from Rock Creek in Montana on August 17th, 2018 and added to Troutnut.com by Troutnut on June 13th, 2019.


Start a Discussion of Spinner

References

Female Cinygmula (Dark Red Quill) Mayfly Spinner Pictures

Collection details
Location: Rock Creek, Montana
Date: August 17th, 2018
Added to site: June 13th, 2019
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy