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.

Two major forks of this grayling stream come together in this pretty pool.

From the Chena River in Alaska

Stream photos

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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

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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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Rhyacophila hyalinata group

Rhyacophila vocala (Green Sedge) Caddisfly Larva

11 Pictures

Lateral view of a Rhyacophila vocala (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #249 in Washington

This specimen is very tentatively placed in Rhyacophila vocala, but see the caveats given by Dave Ruiter in its identification: "There are two species (hyalinata and vocala) currently within the group and this looks closest to R. vocala. It is likely, however, there are several undescribed species in the group and this is one of those."

Collected July 24, 2019 from Mystery Creek #249 in Washington

Added by Troutnut on July 26, 2019

Collected July 24, 2019 from Mystery Creek #249 in Washington and added by Troutnut on July 26, 2019

Creno
Grants Pass, OR

Posts: 302

Creno on Aug 7, 2019August 7th, 2019, 4:19 pm EDT

There are two species (hyalinata and vocala) currently within the group and this looks closest to R. vocala. It is likely, however, there are several undescribed species in the group and this is one of those.