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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 Psychodidae True Fly Larva from Mystery Creek #308 in Washington
This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.
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.

Brian314
Fenton, MI.

Posts: 28
Brian314 on Nov 11, 2018November 11th, 2018, 8:58 am EST
One of the early hatches in MI is the Slate Wing Mahogany. The dry fly versions of this are, confusingly, called Mahogany Dun and Blue Quill - Two completely different colors. (1) Does anyone know why ? (2) Does anyone know the fly patternrecipename for this fly in Mi - I want to tie it ?
Thanks !! Brian314
Roguerat
Roguerat's profile picture
Posts: 456
Roguerat on Nov 11, 2018November 11th, 2018, 11:27 pm EST
Brian,

Welcome to another Michigander on the forum! You're up there in NW Kent Co, apparently...and a short trip to the Rogue or Muskegon.

Blue Quill refers to wing color (a dark grey/dun) and Little Mahogany (reddish, dark brown) refers to body coloration. Both are local names for Paraleptophebia spp. and a good earlier hatch for your local waters...Google these names and a bunch of patterns will turn up, and past experience shows sz 16 nymph and dry flies work best for me.

The Slate Wing Mahogany is another fly altogether- Isonychia spp. (sz's 10-12 with some smaller exceptions later in the season) which should appear in late June through August dependent on temps and other variables. This is a heavy and fairly dependable hatch on the Muskegon.

(asking forgiveness if you already know the above info, I'm often too willing to share stuff).

See you on the stream next spring...I'll be the whiskered old fart flogging the water with a trout spey-rod,

tight lines!

Roguerat

'Less is more...'

Ludwig Mies Vande Rohe

Roguerat
Roguerat's profile picture
Posts: 456
Roguerat on Nov 12, 2018November 12th, 2018, 5:37 am EST
My mistake in noting the Slate Wing Mahogany as an Iso, it IS another name for Paraleptophlebia spp.(thanks to the insect ID section of this forum and Dr Jason)

Isonychia spp. are known as a Slate Drakes or Mahogany Drakes, per Ann Miller's excellent 'Hatch Guide for Upper Midwest Streams', another valuable resource for tyers and fly-fishers alike.

Roguerat

"Less is more...'

Ludwig Mies Vande Rohe

Brian314
Fenton, MI.

Posts: 28
Brian314 on Nov 23, 2018November 23rd, 2018, 9:23 pm EST
Thanks so much for taking the time clearing that up for me Roguerat !
RE Ann Miller's book - it is on my xmas list - if I don't get it at xmas, I'll just order it and give MYSELF a present...LOL !!!! Brian314

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