Troutnut.com Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

> > Siphlonurus sp.

Millcreek has attached these 5 pictures to aid in identification. The message is below.
View Full SizeView Full Size (2.3X larger)
Intermediate nymph. About 15 mm (excluding cerci).
Intermediate nymph. About 15 mm (excluding cerci).
View Full SizeView Full Size (2.4X larger)
Intermediate nymph. About 15 mm (excluding cerci).
Intermediate nymph. About 15 mm (excluding cerci).
View Full SizeView Full Size (2.2X larger)
Ventral view of nymph shown in photo above.
Ventral view of nymph shown in photo above.
View Full SizeView Full Size (1.9X larger)
Mature nymph. About 16 mm (excluding cerci).
Mature nymph. About 16 mm (excluding cerci).
View Full SizeView Full Size (1.9X larger)
Mature nymph. About 16 mm (excluding cerci).
Mature nymph. About 16 mm (excluding cerci).
MillcreekApril 2nd, 2015, 12:53 am
Healdsburg, CA

Posts: 352
These nymphs are fairly common in the Russian River. Usually found in slightly warmer, quiet water areas near shore. Substrate usually consists of small gravel and algae-ridden stones.


The nymphs were keyed out with Merritt, Cummins and Berg (2008).
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

Quick Reply

You have to be logged in to post on the forum. It's this easy:
Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.
Most Recent Posts
Re: Knocking the Rust Off
In Fishing Reports by Summer_doug (Martinlf replied)
Re: Gila Trout near Silver City NM
In the Photography Board by JJTrout (Summer_doug replied)
Re: Looking for best rod in $200-$250 range
In Gear Talk by JJTrout (Spoofer replied)
Northern Iowa Stonefly
In the Identify This! Board by Pdcox
Green Sedge
In the Identify This! Board by Wiflyfisher
Re: Unidentified Baetidae
In the Identify This! Board by Benthosfan
Re: Please confirm Ephemerella needhami
In the Identify This! Board by Jorowan (Doug1234567 replied)
Re: Where to find Rio Grande Cutthroat Trout
In General Discussion by JJTrout (Martinlf replied)
Re: Fishing rod sensitivity!
In Gear Talk by Grayson (OliverJames replied)
Re: Repeat of Niangua ID thank you Roger
In the Identify This! Board by Pdcox (Taxon replied)