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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.

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.
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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Female Formicidae (Ant) Insect Adult Pictures

This specimen began with wings, but they were lost during handling. The reddish abdomen was semi-translucent and almost seemed to glow in the sunlight, and big brown trout were going crazy for them.

Lateral view of a Female Formicidae (Ant) Insect Adult from Mystery Creek #227 in Montana
Female Formicidae (Ant) Insect Adult from Mystery Creek #227 in Montana
Female Formicidae (Ant) Insect Adult from Mystery Creek #227 in Montana
Female Formicidae (Ant) Insect Adult from Mystery Creek #227 in Montana
Female Formicidae (Ant) Insect Adult from Mystery Creek #227 in Montana
Each ruler mark is 1/16 inch.

Ruler view of a Female Formicidae (Ant) Insect Adult from Mystery Creek #227 in Montana The smallest ruler marks are 1/16".

This insect was collected from Mystery Creek #227 in Montana on August 22nd, 2018 and added to Troutnut.com by Troutnut on June 13th, 2019.


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Female Formicidae (Ant) Insect Adult Pictures

Collection details
Location: Mystery Creek #227, Montana
Date: August 22nd, 2018
Added to site: June 13th, 2019
Author: Troutnut
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