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

> > Not invaria

The Specimen

The Discussion

GONZOMay 24th, 2009, 3:00 pm
Site Editor
"Bear Swamp," PA

Posts: 1681
This spinner is Eurylophella rather than E. invaria. The long 9th abdominal segment of Eurylophella is often the easiest way to avoid confusing the duns and spinners with Ephemerella. The claspers and genitalia of this male are also representative of Eurylophella.

WiflyfisherMay 24th, 2009, 7:05 pm
Wisconsin

Posts: 628
Lloyd, what the heck is Eurylophella???
John S.
https://WiFlyFisher.com
GONZOMay 24th, 2009, 8:18 pm
Site Editor
"Bear Swamp," PA

Posts: 1681
John,

Eurylophella species comprised the "bicolor" group of Ephemerella until Allen elevated subgenera (like Drunella, Serratella, Attenella, etc.) in 1980. Although widespread and fairly common, they are infrequently mentioned in fly-fishing literature. In streams and rivers, Eurylophella nymphs usually inhabit slow, weedy water, but some are also found in lakes. Most Eastern/Midwestern species seem to emerge sometime in June/July. The dark-winged duns can also be mistaken for other species, like Ephemerella needhami.

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: Best of the Forum--Most Useful and Informative Bug Threads
In General Discussion by Martinlf
17Feb 26, 2016
by Crepuscular
Re: Thoughts
In Male Eurylophella Mayfly Spinner by Taxon
5Mar 7, 2013
by Entoman
Thoughts on this identification?
In Male Eurylophella Mayfly Spinner by Troutnut
0
Re: Stumped!
In Ephemerella needhami Mayfly Dun by GONZO
8Dec 5, 2008
by Beardius
Re: florida mayfly nymph imitations
In the Mayfly Species Eurylophella temporalis by Homer47
2Sep 6, 2012
by Sayfu
Re: hook size (and chocolate duns, and old-timey mayfly family classifications)
In Eurylophella Mayfly Nymph by Warren
10Apr 13, 2007
by Quillgordon
Re: Flightless Mayfly??
In the Mayfly Genus Serratella by ZenCane
8Apr 5, 2010
by Gutcutter
Re: ID Needed, Please
(1 more)

In the Identify This! Board by Mahones41
14Apr 27, 2012
by Brookyman
Re: Timpanoga hecuba
In the Photography Board by Millcreek
10Sep 19, 2014
by Millcreek
Re: Another Unidentified Mayfly
In the Identify This! Board by Calloway
10Jul 27, 2008
by Phillyfired
Most Recent Posts
Yea...
In the Mayfly Species Ephoron leukon by Imaxfli
Re: Fall ISO's - Au Sable
In General Discussion by Brian314 (Partsman replied)
Tippet for Doug
In Gear Talk by Martinlf
Re: TMC 518 size 32 hooks
In Fly Tying by Dbarr15 (Martinlf replied)
Re: some fish taken on a modern streamer
In Fishing Reports by Partsman (Jmd123 replied)
Re: traditional streamers- still in use?
In General Discussion by Roguerat (Wbranch replied)
Re: fall colors
In Fishing Reports by Partsman (Wbranch replied)