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.

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Doroneuria baumanni (Golden Stone) Stonefly Nymph Doroneuria baumanni (Golden Stone) Stonefly Nymph

Dorsal view of a Doroneuria baumanni (Perlidae) (Golden Stone) Stonefly Nymph from Sears Creek 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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Mother's day hatch in Montana

Millcreek
Healdsburg, CA

Posts: 344

Millcreek on May 8, 2016May 8th, 2016, 10:52 am EDT

Thought some of you might be interested in this. https://www.youtube.com/watch?v=t5N_1ivjOJ4

"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

TimCat

Alanson, MI

Posts: 121

TimCat on May 9, 2016May 9th, 2016, 3:58 pm EDT

Looks like an upstream migration going on there.

"If I'm not going to catch anything, then I 'd rather not catch anything on flies" - Bob Lawless

Wbranch

York & Starlight PA

Posts: 2635

Wbranch on May 13, 2016May 13th, 2016, 3:37 pm EDT

When there is an emergence of that magnitude of any aquatic insect it's time to head to shore and have lunch and a couple of high balls and take a nap until the emergence wanes or just row out and go to the nearest bar.

Catskill fly fisher for fifty-five years.

Losthwy
Posts: 5

Losthwy on Jun 10, 2016June 10th, 2016, 7:25 pm EDT

We have the same thing here in Colorado on the Arkansas River. The key is getting ABOVE the hatch.

Planettrout

Los Angeles, CA / Pullman, WA

Posts: 53

Planettrout on Jun 11, 2016June 11th, 2016, 6:53 am EDT

The Mother's Day Hatch appears earlier here in CA, generally in late March on the Lower Owens River in the Eastern Sierras. I have seen it as thick as those Caddis on the Madison in the video link above...

This is a pattern for the emerging Brachycentrus I use. It is a variation of Craig Matthew's Guide Serendipity that he created for the hatch on the Madison:

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MOTHER’S DAY MUNCH (Caddis Pupa, Brachycentrus) - Matthews/Variant

HOOK: TMC 226 BL, #14 – #18

THREAD: UTC 70 Denier, Fl. White – Under Abdomen / Tiemco 16/0, Black – Thorax forward

ABDOMEN: Datum Glo-Brite Floss Fl. Chartreuse

RIB: UTC Wire, Gunmetal Blue, x-sm

WING: Marc Petitjean CDC, #5 White – * Two tips tied in opposed

THORAX: UV2 Dyed Peacock Eye, Black

I fish it from the bottom to the top of the water column...and does it work... :)

PT/TB

Daughter to Father: "How many arms do you have, how many fly rods do you need?"

http://planettrout.wordpress.com/

Martinlf