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.

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Ephemerella mucronata Mayfly Nymph Ephemerella mucronata Mayfly Nymph

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.

17 Recently Added Photos

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.

catch and release and related stream side ethics, Page 2

Falsifly

Hayward, WI.

Posts: 660

Falsifly on Nov 7, 2007November 7th, 2007, 7:24 pm EST

Hmmmmm. The evolution of tying tools. An interesting concept.

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."

Quillgordon
Schuylkill County, PA.

Posts: 109

Quillgordon on Nov 8, 2007November 8th, 2007, 5:10 am EST

Falsifly said......
The reason the deer population is down is because the fly fisherman are killing all the deer to tie deer hair flies.
****************************************
No, it's because of women drivers talking on their cell-phones!

Flyfishing is a state of mind! .............. Q.g.

C/R........barbless

Falsifly

Hayward, WI.

Posts: 660

Falsifly on Nov 8, 2007November 8th, 2007, 6:16 am EST

Who are trying to locate their husbands or boyfriends who are fishing with their deer hair flies.

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."

Lam
Lancaster, PA

Posts: 81

Lam on Nov 8, 2007November 8th, 2007, 1:01 pm EST

|"It is not uncommon to see several folks out fishing in the middle of the afternoon in the middle of the week in the middle of the winter. It use to be unheard of to see another person out fishing at these times, but not anymore."

Funny you mentioned winter fishing. For years, my brother and I would fish on Christmas day in Potter County. It hasn't happened the last few years because of schedules but we never used to see anyone on the stream. People thought we were crazy. It would definitely dull the experience if we ran into a bunch of other people. It was always a special time together, maybe the only time in a year that we had the opportunity to fish together. And the solitude was part of what made it special.