Troutnut.com Fly Fishing for Trout Home
User Password
or register.

Troutnut Forum > Specimen Discussion > Probably Pteronarcys biloba

The Specimen

Pteronarcys biloba (Knobbed Salmonfly) Stonefly NymphPteronarcys biloba (Knobbed Salmonfly) Stonefly NymphView 10 Pictures
Region: Catskills
Collected Apr 19, 2006
Added Apr 22, 2006

The Discussion

GONZOOctober 4th, 2006, 6:12 pm
"Bear Swamp," PA

Posts: 1003
Everything seems consistent with P. biloba, the "Knobbed Salmonfly." Unlike dorsata, it is usually found in small streams and headwaters where it is a real mouthful for the little trout. Typical salmonfly nymph ties tend to be likewise, so I usually choose to imitate the younger, smaller generations of nymphs.
These advertisements will disappear if you register.
Replies:
TroutnutOctober 4th, 2006, 6:58 pm
Fairbanks, AK

Posts: 1147
Thanks. I've added a page for P. biloba with that information and changed the specimen's ID accordingly.

What's your source for the information? I still need to find a good source on stoneflies. I haven't tried hard yet since I've been focusing on mayflies, but it would be good to know where to start.
Jason Neuswanger
The Troutnut
GONZOOctober 4th, 2006, 8:02 pm
"Bear Swamp," PA

Posts: 1003
Unfortunately, I'm not aware of a really good, up-to-date angler's book on stoneflies. The species I've identified today are ones I know well from personal experience.

I like Stoneflies for the Angler by Leiser and Boyle (Knopf, 1982 and Stackpole paperback reprint, 1990). It was accurate and well-researched for its day and is a good general angler's reference; but it lacks any systematic keys. There's also an Arbona stonefly book that I haven't seen or read.

And to answer your question from the other thread, I haven't come across a recent species level description of Epeorus that would be of any help.
Most Recent Posts
Re: Tungsten Wire
In Fly Tying by Martinlf
Re: Trout stream improvement
In General Discussion by Troutnut
Have you heard the news..........
In General Discussion by Aaron7_8
Bug VIDEO
In General Discussion by RoyChristie
Re: honey bug
In Fly Tying by Troutbum13
Re: Tail types
In Fly Tying by Troutbum13
Re: October Caddis
In the Caddisfly Genus Dicosmoecus by CaseyP
Re: To eat or not to eat... that is the question.
In General Discussion by Trtklr
Re: Any experience with this style?
In Fly Tying by Trtklr
Re: Snowshoe Hare
In Fly Tying by Inconnu
Re: Chloroperlidae
In Isoperla Stonefly Adult by Teamrenna
Re: Trout response to rising hot and dry years
In General Discussion by Jjlyon01
Re: Help unsticking my fly rod
In General Discussion by HighFlyer
Re: Clark's Creek, Harrisburg PA - Need Help!
In General Discussion by Martinlf
Re: unknown mites-please help
In the Identify This! Board by Troutnut