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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 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.
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.

Bowmandjk
erie,penna

Posts: 16
Bowmandjk on Dec 25, 2007December 25th, 2007, 12:02 am EST
hey guys im interrested in tying some nymphs using glass beads i saw some done and they looked pretty good can you share any recipes or web pages on them thanks
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Dec 25, 2007December 25th, 2007, 6:40 am EST
Use Google and search Mercury Midge. That should get you started.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Flybinder
Oregon Coast

Posts: 60
Flybinder on Dec 25, 2007December 25th, 2007, 6:25 pm EST
Just a "suggestion, from past experiences"........
I used to tie up and fish several glass bead flies and I liked the way they looked, above and below, the surface.
I started, by merely tying any pattern bead head and replacing the brass/chrome, bead, with a glass one. They can fish.
BUT......... I also stopped tying them, when I began having to throw away, perfectly good flies..... because the glass bead shattered, hitting an underwater rock and/or obstruction. Smack one,even against a branch, with the speed that a normal back cast travels and you can also, often, kiss that fly good-bye!
So, now, I tie my glass bead head flies in the same manner but use PLASTIC beads of the same colors/sizes, I was tying with before. Haven't noticed a BIT of difference, in light refraction, between the plastic and the glass and neither have I busted a plastic bead on anything yet!!?!
(key word, being..........."YET"!?).
Anyhoooo............ just a suggestion and my own .02 worth!
Flybinder:
"You should'a been here, NEXT week,the fishing's great!"
Mcjames
Cortland Manor, NY

Posts: 139
Mcjames on Dec 26, 2007December 26th, 2007, 11:57 pm EST
My experience mirrors that of Flybinder... many shattered beads
I am haunted by waters

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