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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.

Dorsal view of a Ephemerella mucronata (Ephemerellidae) Mayfly Nymph from the Yakima River in Washington
This is an interesting one. Following the keys in Merritt R.W., Cummins, K.W., and Berg, M.B. (2019) and Jacobus et al. (2014), it keys clearly to Ephemerella. Jacobus et al provide a key to species, but some of the characteristics are tricky to interpret without illustrations. If I didn't make any mistakes, this one keys to Ephemerella mucronata, which has not previously been reported any closer to here than Montana and Alberta. The main character seems to fit well: "Abdominal terga with prominent, paired, subparallel, spiculate ridges." Several illustrations or descriptions of this holarctic species from the US and Europe seem to match, including the body length, tarsal claws and denticles, labial palp, and gill shapes. These sources include including Richard Allen's original description of this species in North America under the now-defunct name E. moffatae in Allen RK (1977) and the figures in this description of the species in Italy.
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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Fishingguru
Southeastern PA

Posts: 5
Fishingguru on Jan 31, 2008January 31st, 2008, 3:39 pm EST
Has anyone fished twisted hackle emergers and how did they fare? I saw an article some time back and it sounded interesting. Twist the hackle with the dubbing used for the thorax. Seems like it would give a nice splay for legs.
Lav
Lonehunter
UPSTATE NY

Posts: 6
Lonehunter on Feb 8, 2008February 8th, 2008, 5:32 am EST
Hi
Never have.. I would love to see a picture on one done correctly.
Love to steel others ideas LOL
Thanks
TIGHT LINES
PRACTICE CATCH AND RELEASE
JACK

ENJOY THE JOURNEY NOT THE FINISH
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Feb 8, 2008February 8th, 2008, 3:01 pm EST
I tried to look this one up and learned it's a Shane Stalcup pattern. Does anyone have directions for it, or for another favorite emerger?

I've mentioned the Little Lehigh Flyshop BWO CDC emerger a few times, which gave me a spectacular day once, and I recently had a buddy send me a Pat Dorsey BWO emerger that I'm using as a model for a new fly that combines the winging method on the Compoly Dun (A Google search will take you to a recipe) with Lloyd Gonzales method of tying an emerger shuck, except I'm trying CDC on some instead of synthetics, and cutting the wing short after slanting it back. I may add a wrap or two of hackle on some too. I also think a parachute with shorter hackles and a shuck makes a superb emerger. What are some other favorite patterns out there?
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Dano
Vanderbilt, Michigan

Posts: 101
Dano on Feb 8, 2008February 8th, 2008, 5:32 pm EST
Can't say that I've tried this twisted hackle technique...Seems to me, though, that it would be worth a shot on nymphs rather than emegers. Most I've seen have a beard style soft hackle. Which, IMSHO, would be a more realistic impression of the legs...

In answer to Louis' last question: My favorite emerger pattern is the one they're biting on. Not trying to be a smartass, really. My "emergers" are the traditional wets that I carry. But, when things are going fast and furious during a hatch caught with a dry on the end of my tippet and all I'm gettin' are bulges with no hits, I simply nip back the wings and hackles, put a dab of mud on the fly, then get back to business.

However, back in the early 80s when these things were just becoming the rage and I got the Supplement II for my Index of Orvis Fly Patterns, I used this pattern:

Note that Orvis forgot to include the beard style hackle (Wood Duck) in the recipe.

After a couple of seasons in not seeing any difference in my catch ratios, I stopped using 'em. FWIW.

Dano


Eventually, all things merge into one...and a river runs through it.

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