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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Clostoeca disjuncta (Northern Caddisfly) Caddisfly Larva Clostoeca disjuncta (Northern Caddisfly) Caddisfly Larva

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington

This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.

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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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National Weather Service in La Crosse captured the Hex hatch on radar

Wiflyfisher

Wisconsin

Posts: 622

Wiflyfisher on Jul 11, 2008July 11th, 2008, 7:02 am EDT

I thought others might enjoy reading this article...

http://www.lacrossetribune.com/articles/2008/07/11/news/03mayflowers11.txt

John S.
https://WiFlyFisher.com

Teddyp
North Carolina

Posts: 18

Teddyp on Jul 11, 2008July 11th, 2008, 9:57 am EDT

That's awesome!

Ted

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Jul 14, 2008July 14th, 2008, 8:46 am EDT

Cool, John. For those who haven't seen Doppler tracking of Hex swarms before, here's a link to the PSU Behrend site that has several neat little movies and an explanation of how the Doppler tracking is done:

http://paaquaticfliesrus.bd.psu.edu/webroot/mayflies.asp

Wiflyfisher

Wisconsin

Posts: 622

Wiflyfisher on Jul 14, 2008July 14th, 2008, 1:46 pm EDT

Gonzo, Interesting! I would guess the size of the insects hatching and the density of the hatch has to be pretty amazing to show up. In my experience I have only heard of it on radar for the Hex. hatch, no other mayflies.

The E. luekon/album hatch I have seen on a couple occasions extremely dense as well and covered some bridges, but I have not heard of it on droppler radar.

John S.
https://WiFlyFisher.com