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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
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 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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Oldredbarn's profile picture
Novi, MI

Posts: 2600
Oldredbarn on Mar 18, 2013March 18th, 2013

Our own Mark "Softhackle" Libertone is now international! Hans Weilenmann has a tying demo of Mark's Lil' Dorothy on his site and mentions him as the originator! By name...

Wow! Way to go Libertone! Will you still speak with us mere plebs here on Troutnut? :)

"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
PaulRoberts's profile picture

Posts: 1776
PaulRoberts on Mar 19, 2013March 19th, 2013, 7:10 am EDT
Neat! Thanks for posting it.
Crepuscular's profile picture
Boiling Springs, PA

Posts: 920
Crepuscular on Mar 19, 2013March 19th, 2013, 9:35 am EDT
I love it. Cool post, great fly.
Posts: 560
Sayfu on Mar 20, 2013March 20th, 2013, 6:15 am EDT
Mark would just cringe at my bastardized soft hackle that I have been tying lately, and dying to try out. I use my dependable bead at the head, and then place in some micro rubber legs behind the bead the flex floss type that become the caddis pupa horns that hang back, after I dub the body then the soft hackle of a sage grouse that has some beautiful prominent barred hackle.
Fortunately for we fly anglers there are folks like Mark that retain the tradition. Good for Mark, and I always take the time to enjoy Hans Weilenmann.

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