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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.
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.

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Bellevue, WA

Posts: 2758
Troutnut on Mar 30, 2008March 30th, 2008, 8:28 am EDT
I've been taking a lot of pictures around Alaska that don't quite fit the streams & fishing theme of this site, but are worth showing around. So I've created a separate site as a photojournal for my Alaska travels.

Once I get a lot more pictures up (and I have a LOT from the summer and fall that aren't on there yet) I'll be linking this into the main blue menu on this site, along with a new fly tying contest site. But the look & feel of the Alaska one is pretty much done so I'm announcing it here on the forum.

The new site won't take away from this one at all. Instead it's a place for stuff that doesn't quite make sense on this one. In fact, some of the pictures will overlap.

North of the North - a glimpse of Alaska

Questions? Comments? Criticisms?
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
new england

Posts: 4
Lifeaquatic on Mar 31, 2008March 31st, 2008, 9:10 am EDT
Man those northern lights shots are awesome. good work and thank you.
we seek for slumbering trout,and whispering in their ears,
give them unquiet dreams.

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