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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 Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from the Yakima River in Washington
Some characteristics from the microscope images for the tentative species id: The postero-lateral projections are found only on segment 9, not segment 8. Based on the key in Jacobus et al. (2014), it appears to key to Neoleptophlebia adoptiva or Neoleptophlebia heteronea, same as this specimen with pretty different abdominal markings. However, distinguishing between those calls for comparing the lengths of the second and third segment of the labial palp, and this one (like the other one) only seems to have two segments. So I'm stuck on them both. It's likely that the fact that they're immature nymphs stymies identification in some important way.
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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Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on May 4, 2007May 4th, 2007, 6:38 am EDT
Jason, as noted before the photos of the ventral side, from the fish's eye view are great. These Show the lighter edges of the segments that Gonzo often imitates with lighter thread. I've been tying some of my baetids and paraleps with a unithread body ribbed with a lighter color (twisted to make the rib thin) and the trout seem to like it. I sometimes, (when I remember) add a coat of thinned flexament, which preserves the true thread color when it gets wet. I'd be curious to hear others ideas about Blue Quill imitations. A parachute has been working as well as Gonzo's upside down comparadun tie, one of which was readily gobbled (and seated in the lip on the hookset) by a nice spring creek brown as I hit the tail end of the hatch after a day of nymphing yesterday.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
JWW
Fruita Colorado

Posts: 1
JWW on May 13, 2007May 13th, 2007, 3:45 am EDT
Can I ask how do you thin the flexament?
GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681
GONZO on May 13, 2007May 13th, 2007, 3:53 am EDT
JWW--Dave's Flexament has a companion bottle of thinner (looks the same, but has "Thinner" on the label). The ability to thin this flexible cement to various consistencies makes it very versatile.
Flytyer0423
germansville PA

Posts: 14
Flytyer0423 on Aug 2, 2009August 2nd, 2009, 5:13 pm EDT
what i use for this fly is a realistic mayfly its really easy to tie i use a rusty spinner orvis spectrablend dry fly dubbing and a hi-vis post http://www.youtube.com/watch?v=Qg8Up5ph8Fo
i use this technique for all my mayfly patterns its really easy and high floating fly its even usefull for still water fly fishing
(vistit my website @) www.natureboyoutdoors.weebly.com
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Aug 3, 2009August 3rd, 2009, 10:25 am EDT
Impressive technique and fly. Thanks for sharing this.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Flytyer0423
germansville PA

Posts: 14
Flytyer0423 on Aug 20, 2009August 20th, 2009, 8:16 pm EDT
and also if you dont have a nor-vise to tie this fly you can use a bodkin and spin it in your hand its a little bit more time consuming but it is worth since you can even catch the fish with this fly on still water
(vistit my website @) www.natureboyoutdoors.weebly.com

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