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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Dorsal view of a Grammotaulius betteni (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This is a striking caddis larva with an interesting color pattern on the head. Here are some characteristics I was able to see under the microscope, but could not easily expose for a picture:
- The prosternal horn is present.
- The mandible is clearly toothed, not formed into a uniform scraper blade.
- The seems to be only 2 major setae on the ventral edge of the hind femur.
- Chloride epithelia seem to be absent from the dorsal side of any abdominal segments.
Based on these characteristics and the ones more easily visible from the pictures, this seems to be Grammotaulius. The key's description of the case is spot-on: "Case cylindrical, made of longitudinally arranged sedge or similar leaves," as is the description of the markings on the head, "Dorsum of head light brownish yellow with numerous discrete, small, dark spots." The spot pattern on the head is a very good match to figure 19.312 of Merritt R.W., Cummins, K.W., and Berg, M.B. (2019). The species ID is based on Grammotaulius betteni being the only species of this genus known in Washington state.
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.

Summer_doug
Detroit, MI

Posts: 46
Summer_doug on Jun 11, 2019June 11th, 2019, 12:04 am EDT
Hello everyone!

With the end of the school year approaching, I'm looking forward to taking a few new people out on an expedition to a new stream, the Little Manistee, for the first time this season! We are going to camp for a night sandwiched between two days of *fingers crossed* dry fly fishing. So far in Michigan, the reports of dry fly success have been extremely inconsistent.

My personal goal is to try and catch a brook, brown, and rainbow all in one day which I have yet to do. In the hopes of that, I've tried looking for smaller tributaries, but the Little Man has surprisingly few!

Do any of the Michigan-based nuts have any tips/recommendations for the Little Manistee? The rest of you, how has the new trout season been treating you?
From Michigan
Roguerat
Roguerat's profile picture
Posts: 456
Roguerat on Jun 11, 2019June 11th, 2019, 1:42 am EDT
Doug- pm'd you on this, and guess I hit 'send' twice, sorry

re: the Little Man, a really, REALLY classic MI Trout Stream- my father-in-law's best friend lives in the Luther area and, reportedly, can limit out on Brookies regularly. I tend to fish downstream below M-37 and open casting water vs. dapping or crawling through the underbush to find the stream.

tight lines,

Roguerat

'less is more...'

Ludwig Mies Vande Rohe
Summer_doug
Detroit, MI

Posts: 46
Summer_doug on Jun 11, 2019June 11th, 2019, 2:40 am EDT
Thanks again for the information.

Everything I read about the Little Man seems geared toward steelhead and salmon. The brook trout seem to be forgotten about, but maybe that is due to accessibility issues?
From Michigan
Strmanglr
Strmanglr's profile picture
Posts: 156
Strmanglr on Jun 28, 2019June 28th, 2019, 8:06 am EDT
My birth place of trout fishing. Know that river better than any other.

Plenty of browns, few less rainbows, never hooked a brookie in there. I too fish well down stream from 37.

It is usually stellar for salmon and steelhead.

There is a fly only area.

You should not have any problem finding access to good water.

Last week I went up to the east side and wished I would have headed over to that area. Maybe in a week or two.

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