Hex Mayflies
Hexagenia limbata
The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
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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.
- 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.
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Flags on Feb 10, 2009February 10th, 2009, 12:41 am EST
Hans Weilenmann ties a sulphur comparadun in which he uses a "DST" quill for the abdomen. I have never encountered the term "DST".can anyone explain / define it for me?
Thanks,
Flags
Thanks,
Flags
Stay focused on what is important in life...........
Flags on Feb 10, 2009February 10th, 2009, 6:18 am EST
The board says there is a response to this by Taxon..but I find nothing below my original question.?
Flags
Flags
Stay focused on what is important in life...........
Falsifly on Feb 10, 2009February 10th, 2009, 6:40 am EST
Dyed Stripped Turkey ?
Falsifly
When asked what I just caught that monster on I showed him. He put on his magnifiers and said, "I can't believe they can see that."
When asked what I just caught that monster on I showed him. He put on his magnifiers and said, "I can't believe they can see that."
Flags on Feb 10, 2009February 10th, 2009, 8:22 am EST
Falsifly: Thank you for that information..........there it was right in frongt of my nose and I didn't see it.........it's a forest and tree thing I guess.
At any rate I will be able to sleep better tonight.....
Thanks again,
Flags
At any rate I will be able to sleep better tonight.....
Thanks again,
Flags
Stay focused on what is important in life...........
Allan on Sep 7, 2011September 7th, 2011, 10:15 am EDT
Falsifly: Thank you for that information..........there it was right in frongt of my nose and I didn't see it.........it's a forest and tree thing I guess.
At any rate I will be able to sleep better tonight.....
Thanks again,
Flags
Flags,
You asked, 'What are DST Quills'? Well, they are not turkey biots or turkey anything. I should know since I developed them. I'll not tell you what they are but I'd be more than willing to send you some samples. Oh, here's a photo of an Olive tied with DST Quill body.
and a Red Quill
and an extended body Potamantus
Oh, I just looked at the fly you referred to. I believe it's a fly that I tyed and Hans photo'd for his site.
Allan
Taxon on Sep 7, 2011September 7th, 2011, 8:14 pm EDT
Mike-
PM sent.
PM sent.
Oldredbarn on Sep 8, 2011September 8th, 2011, 11:46 am EDT
You asked, 'What are DST Quills'? Well, they are not turkey biots or turkey anything. I should know since I developed them.
Ok. What does DST stand for then? If not what Allan (Falsifly) stated?
Spence
"Even when my best efforts fail it's a satisfying challenge, and that, after all, is the essence of fly fishing." -Chauncy Lively
"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood
"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood
Allan on Sep 8, 2011September 8th, 2011, 2:22 pm EDT
You asked, 'What are DST Quills'? Well, they are not turkey biots or turkey anything. I should know since I developed them.
Ok. What does DST stand for then? If not what Allan (Falsifly) stated?
Spence
Hi,
It stands for 'D'yed 'S'pecially 'T'reated, Quills.
Allan
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