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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
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.

Dorsal view of a Ephemerella mucronata (Ephemerellidae) Mayfly Nymph from the Yakima River in Washington
This is an interesting one. Following the keys in Merritt R.W., Cummins, K.W., and Berg, M.B. (2019) and Jacobus et al. (2014), it keys clearly to Ephemerella. Jacobus et al provide a key to species, but some of the characteristics are tricky to interpret without illustrations. If I didn't make any mistakes, this one keys to Ephemerella mucronata, which has not previously been reported any closer to here than Montana and Alberta. The main character seems to fit well: "Abdominal terga with prominent, paired, subparallel, spiculate ridges." Several illustrations or descriptions of this holarctic species from the US and Europe seem to match, including the body length, tarsal claws and denticles, labial palp, and gill shapes. These sources include including Richard Allen's original description of this species in North America under the now-defunct name E. moffatae in Allen RK (1977) and the figures in this description of the species in Italy.
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.
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Morning Tricos at the Beaver Hut
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Jul 29, 2007July 29th, 2007, 9:52 am EDT
I'm curious to learn where the picture that appears on the banner of the web site was taken. It looks a lot like a section of the main stem of the Delaware. As a matter of fact now that I've looked at it more closely I know exactly where it was taken as I have fished the tail out often and my friends and I named the area below the two wading anglers "Rainbow Run".
Catskill fly fisher for fifty-five years.
JOHNW
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Chambersburg, PA

Posts: 452
JOHNW on Jul 29, 2007July 29th, 2007, 12:22 pm EDT
That shot is almost "heavenly" isn't it?
JW
"old habits are hard to kill once you have gray in your beard" -Old Red Barn
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Jul 29, 2007July 29th, 2007, 2:50 pm EDT
I'd be curious if anyone knows the name of the pool where the pontoon boats are waiting? I know what it as I've fished there since the early 1970's. I like to see if I can figure out where a picture is taken on rivers I've fished.
Catskill fly fisher for fifty-five years.
IEatimago
Spring Mills, PA

Posts: 97
IEatimago on Jul 29, 2007July 29th, 2007, 6:22 pm EDT
i have never fished a river that big,ever.
Martinlf
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Moderator
Palmyra PA

Posts: 3047
Martinlf on Jul 30, 2007July 30th, 2007, 5:40 am EDT
I hate to expose my ignorance, but where is the Beaver Hut? It looks like Trico Paradise to me.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Wbranch
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York & Starlight PA

Posts: 2635
Wbranch on Jul 30, 2007July 30th, 2007, 7:10 am EDT
Louis,

The "Beaver Hut" is on a side channel of the Missouri River near Holter Dam. The "channel" is pretty wide by most standards and likely to be about 100' wide. But compared to the main flow at about 400 feet wide it is still has an intimate feel to it. It has many 18" - 20" browns and rainbows in it as well as some over 20".
Catskill fly fisher for fifty-five years.
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Jul 30, 2007July 30th, 2007, 7:12 am EDT
In case anyone is interested the location of the banner picture (that was up yesterday) is the tail of the Bard-Parker Pool on the main stem of the Delaware.
Catskill fly fisher for fifty-five years.
JOHNW
JOHNW's profile picture
Chambersburg, PA

Posts: 452
JOHNW on Jul 31, 2007July 31st, 2007, 9:52 am EDT
Ok dumb question is Bard Parker also the bottom end of Junction/Second Heaven? Right around where the channels break off on river left?
JW
"old habits are hard to kill once you have gray in your beard" -Old Red Barn
Wbranch
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Aug 4, 2007August 4th, 2007, 5:20 pm EDT
JohnW,

Bard-Parker is the pool that starts at the end of the riffle water about 100 yards below the confluence of the West Branch and East Branch. There is a large NYS parking area on the left side of the river as you float downstream. B-P is accessible from Rte 97 just south of Hancock, NY.
Catskill fly fisher for fifty-five years.

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