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.

Stream photos

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Amphizoa Beetle Larva Amphizoa Beetle Larva

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington

This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).

5 Recently Added Photos

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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Stonefly Species Taenionema pacificum (Willowflies)

Species Range

source

Specimens of the Stonefly Species Taenionema pacificum

1 Adult

Taenionema pacificum (Willowfly) Stonefly Adult

2 Pictures

Taenionema pacificum (Taeniopterygidae) (Willowfly) Stonefly Adult from the Jocko River in Montana

Collected March 11, 2005 from the Jocko River in Montana

Added by Bnewell on June 28, 2011

Collected March 11, 2005 from the Jocko River in Montana and added by Bnewell on June 28, 2011

1 Male Adult

Male Taenionema pacificum (Willowfly) Stonefly Adult

2 Pictures

Male Taenionema pacificum (Taeniopterygidae) (Willowfly) Stonefly Adult from the Jocko River in Montana

Collected February 28, 2005 from the Jocko River in Montana

Added by Bnewell on June 28, 2011

Collected February 28, 2005 from the Jocko River in Montana and added by Bnewell on June 28, 2011

Start a Discussion of Taenionema pacificum

References

Merritt R.W., Cummins, K.W., and Berg, M.B. 2019. An Introduction to the Aquatic Insects of North America (Fifth Edition). Kendall/Hunt Publishing Company.