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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.

Lateral view of a Onocosmoecus (Limnephilidae) (Great Late-Summer Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen keys pretty easily to Onocosmoecus, and it closely resembles a specimen from Alaska which caddis expert Dave Ruiter recognized as this genus. As with that specimen, the only species in the genus documented in this area is Onocosmoecus unicolor, but Dave suggested for that specimen that there might be multiple not-yet-distinguished species under the unicolor umbrella and it would be best to stick with the genus-level ID. I'm doing the same for this one.
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.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Goose
Posts: 77
Goose on Dec 22, 2006December 22nd, 2006, 1:41 am EST
Hi Troutnut! Do you have a photo of a cress bug on a rock or something so I can see what it looks like in a naked-eye sort of way? You have several very close shots, which are neat, but I can't really see what they look like in a stream environment. Thanks

Merry Christmas to all!
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Dec 22, 2006December 22nd, 2006, 5:23 am EST
I don't have any onstream underwater photos of sowbugs/cressbugs yet. I do have one or two of scuds, though.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Jlh42581
Milesburg, Pa

Posts: 24
Jlh42581 on Jan 9, 2007January 9th, 2007, 4:34 am EST
If you want to make an AWSOME cress bug.

Get yourself a size 20 tiemco caddis pupa hook and load it with gray dubbing and then trim, do not shell back it or add legs
Jeremy
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Jan 9, 2007January 9th, 2007, 12:25 pm EST
Amen, though you can also tie them bigger, especially for stained or high water.

I like Muskrat fur, and ofen leave it spiky, at least on one side, to suggest legs, unless I do the Ed Shenk thing and spin fur in a dubbing loop and trim to a generally flat shape on the bottom, convex on the top.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Jan 9, 2007January 9th, 2007, 3:38 pm EST
Yeah, they can be a lot bigger than size 20, probably even up to size 12 in a caddis hook.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Jlh42581
Milesburg, Pa

Posts: 24
Jlh42581 on Jan 11, 2007January 11th, 2007, 4:16 am EST
My most productive is a 20

I carry them 14-26

At 26 they dont look like much but they have saved the day more then once.
Jeremy
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Jan 11, 2007January 11th, 2007, 5:13 am EST
Jeremy, how do you trim up your fly? Do you ever pick out the guard hairs and leave it spiky?
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Goose
Posts: 77
Goose on Jan 11, 2007January 11th, 2007, 5:55 am EST
Troutnut: I have some digitals of cress bugs if you'd like them. I can send them to you and you can use what you want. They are from Central, PA. Just let me know how I can forward them to you. I suppose Jpegs. are the best way. I could attach them to an email.
Jlh42581
Milesburg, Pa

Posts: 24
Jlh42581 on Jan 17, 2007January 17th, 2007, 9:26 am EST
I use a very spikey dubbing to begin with. Died hares ear or some other natural. I prefer possum as its REALLY spikey. Sometimes i dont pick it or trim it. just wrap it on. I really found you dont need a shellback and the ones without shellbacking prove better for me.

It goes along the lines of somthing i once read.
"The best imitation of a fly looks the same from every angle"

I pick the sides and trim to get the shape, cut the top and bottom flat.
Jeremy

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