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

> > Ecdyonurus spp, with Symbiocladius parasites

Millcreek has attached these 3 pictures to aid in identification. The message is below.
Shown Full Size
Shown Full Size
View Full SizeView Full Size (1.3X larger)
MillcreekJanuary 11th, 2015, 12:07 pm
Healdsburg, CA

Posts: 316
These are Ecdyonurus nymphs with Symbiocladius parasitizing them. They were collected from Mill Creek, a tributary of the Russian River. Symbiocladius are a member of Diptera, the true flies. They attach themselves behind the wingpads and grow to maturity there without harming the Ecdyonurus nymph. They parasitize Paraleptophebia and Rhithrogena as well though not in this area.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
MillcreekJanuary 11th, 2015, 12:26 pm
Healdsburg, CA

Posts: 316
An added note:
Here is a pdf on Symbiocladius. http://pte.au.poznan.pl/ppe/PPE1-2007/285-291_Gilka_i_in.pdf
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
EntomanJanuary 11th, 2015, 12:56 pm
Site Editor
Northern CA & ID

Posts: 2604
Fascinating, Mark. Are they just attaching themselves for pupation or are they feeding off them?
"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman
CrepuscularJanuary 11th, 2015, 1:13 pm
Boiling Springs, PA

Posts: 915
COOL! thanks for posting Mark!
MillcreekJanuary 11th, 2015, 3:06 pm
Healdsburg, CA

Posts: 316
Kurt-

They feed off them. They attach themselves and feed off haemolymph (bug blood) and associated tissues.


Eric-

You're welcome.
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
EntomanJanuary 11th, 2015, 5:36 pm
Site Editor
Northern CA & ID

Posts: 2604
Thanks, only noticed your link after posting my question. Oh, well...:)

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

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.

Related Discussions

TitleRepliesLast Reply
Re: Mayfly from Chalk stream
In the Identify This! Board by Stanislav
12May 4, 2007
by Taxon
Re: How
In Psephenus Beetle Larva by Okeydokey01
1Apr 29, 2008
by Taxon
Re: Big Friends from Spence's May 2010 Au Sable Trip
(5 more)

In the Photography Board by Oldredbarn
10Feb 27, 2012
by Oldredbarn
Re: How do u attach pics using iPhone
In the Identify This! Board by Johnvinblad
1Jun 15, 2012
by Crepuscular
Re: Where have they gone?
In General Discussion by Falsifly
7Jan 31, 2008
by Softhackle
Re: More from Derwent, UK
In the Identify This! Board by Sglidster
1Feb 23, 2012
by Troutnut
Re: Podmosta identification...
In Taenionema atlanticum Stonefly Nymph by PeterO
6Apr 25, 2007
by Troutnut
Re: fly pattern
In Fly Tying by Lastchance
3Jun 26, 2008
by Softhackle
Re: 2nd annual fly swap
In Fly Tying by LittleJ
86Mar 16, 2009
by Trtklr
Re: More mayflies from Spain. Ecdyonurus?
In the Identify This! Board by Isidro
2Mar 26, 2008
by Isidro
Most Recent Posts
Re: Winooski River and tribs
In General Discussion by Vtbrowns57
Re: How do you guys time your hooksets?
In General Discussion by Partsman (Martinlf replied)
Re: Euro Nymph Rod
In Gear Talk by Wbranch (Martinlf replied)
Re: Bead head or not???
In Beginner Help by Gt2003 (Jmd123 replied)
Re: Where are they now?
In Gear Talk by Wbranch (Jmd123 replied)
Re: Penns Bugs
In Penn's Creek by Martinlf (Dmcwil01 replied)
Re: Sinking line reccomendation for Stillwater fishing
In Gear Talk by EasyPeasy (Jmd123 replied)
Re: Fly Box Redesign
In General Discussion by Wesjohns8 (Jmd123 replied)
Re: Some Fly Boxes
In the Photography Board by Wbranch
South fork sauk
In The South Fork Sauk River by Russell_O