Header image
Enter a name
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 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.

JOHNW
JOHNW's profile picture
Chambersburg, PA

Posts: 452
JOHNW on Oct 11, 2011October 11th, 2011, 1:06 pm EDT
Has anyone heard from Louis lately?
I've sent a few emails/pm's his way w/o response. I hop ethe floods didn't get him too badly.
JW
"old habits are hard to kill once you have gray in your beard" -Old Red Barn
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Oct 11, 2011October 11th, 2011, 5:00 pm EDT
Hi John, I missed previous messages somehow. Things get buried fast in my email. Just tied up for a while, but we are on high ground and stayed dry. I did have a time getting home the Wednesday that Hershey flooded, though. Had to detour a number of times and then to ford several places. The last spot was a bit touch and go, but fortunately made it through. Hope you're fishing some for me.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
JAD
JAD's profile picture
Alexandria Pa

Posts: 362
JAD on Oct 15, 2011October 15th, 2011, 4:28 am EDT
I saw Dr Louis Martin at fish camp Saturday night,he looked OK. I told him my arm hurt when i raise it up (like this) Louis said John don't raise your arm. He sure is a good friend.

JAD

They fasten red (crimson red) wool around a hook, and fix onto the wool two feathers which grow under a cock’s wattles, and which in colour are like wax.
Radcliffe's Fishing from the Earliest Times,
Sayfu
Posts: 560
Sayfu on Oct 15, 2011October 15th, 2011, 5:16 am EDT

Dr. Martin is a good Dr..mine would have said, "Here, let me kick you in the knee, and your arm will feel fine."
JOHNW
JOHNW's profile picture
Chambersburg, PA

Posts: 452
JOHNW on Oct 16, 2011October 16th, 2011, 8:38 am EDT
JAD is the new location a permanent thing?
"old habits are hard to kill once you have gray in your beard" -Old Red Barn
JAD
JAD's profile picture
Alexandria Pa

Posts: 362
JAD on Oct 18, 2011October 18th, 2011, 3:52 pm EDT
Yes John, till Nov then I go south for 4 mo.

John

They fasten red (crimson red) wool around a hook, and fix onto the wool two feathers which grow under a cock’s wattles, and which in colour are like wax.
Radcliffe's Fishing from the Earliest Times,
JOHNW
JOHNW's profile picture
Chambersburg, PA

Posts: 452
JOHNW on Oct 18, 2011October 18th, 2011, 4:05 pm EDT
10-4
"old habits are hard to kill once you have gray in your beard" -Old Red Barn

Quick Reply

Related Discussions

Topic
Replies
Last Reply
8
May 12, 2011
by Martinlf
19
Sep 3, 2010
by Lufi
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy