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

> > Coffin Fly Spinner



The Specimen

Ephemera simulans (Brown Drake) Mayfly SpinnerEphemera simulans (Brown Drake) Mayfly Spinner View 7 Pictures
Collected June 2, 2005 from the Namekagon River in Wisconsin
Added to Troutnut.com by on May 24, 2006

The Discussion

Post Reply
JacksonMay 26th, 2009, 2:16 pm
Posts: 3Is the Coffin fly the male spinner of the Green Drake or does the Brown Drake also produce a white spinner?
KonchuMay 26th, 2009, 7:27 pm
Site Editor
Indiana

Posts: 505		The Coffin Fly and Green Drake are different names for the same thing in the East. The Brown Drake is another species.
JacksonMay 27th, 2009, 6:55 am
Posts: 3My understanding is that the Coffin Fly is the male spinner of the Green Drake and it is white when spent. Does the Eastern Brown Drake (different species) also have a white male spinner?? Can you have both species, Green and Brown, come off in the same waters (eastern spring creek) at the same time? The reason I ask is it appears that I have seen both on the water. Any really good way to distinguish these 2 species from each other besides the slight green color to the wings (green drake)?
Thanks, Ed
WiflyfisherMay 27th, 2009, 9:06 am
Wisconsin

Posts: 663		I can't say for out East, but I have never seen a Brown Drake spinner that looked like the Eastern Coffin Fly (Green Drake) in the Upper Midwest.
John S.
https://WiFlyFisher.com
GONZOMay 27th, 2009, 10:01 am
Site Editor
"Bear Swamp," PA

Posts: 1681
Does the Eastern Brown Drake...also have a white male spinner??
No, but it is only the abdomen of the Green Drake spinner that is whitish. The wings of the spinners retain the heavy blackish markings, and the thorax is dark. It is the funereal black-and-white coloration of the male spinners that led to the nickname, Coffin Flies. (The female spinners often have a yellowish tint to the abdomen due to underlying eggs.)

Can you have both species, Green and Brown, come off in the same waters...at the same time?
Yes, when they are present in the same waters, the emergence usually overlaps. However, March Browns (M. vicarium) are sometimes confused for Brown Drakes and vice versa. Look at the number of tails: March Browns will have two; Brown and Green Drakes will have three.

Any really good way to distinguish these two species from each other besides the slight green color to the wings (green drakes)?
Despite the name, not all populations of Green Drakes have a greenish tint. Green Drakes (E. guttulata) are typically larger than Brown Drakes (E. simulans). (Hatches gives the size range for Green Drakes as 18-30mm and Brown Drakes as 13-16mm, but I have seen female Brown Drakes up to 20mm.) Green Drake duns have creamy pale tan to dull yellowish abdomens with a darker brownish (sometimes dark olive) dorsal coloration. The wings are heavily marked with black or dark brown with a slightly yellowish (sometimes greenish) background. Brown Drake duns have tan or yellowish brown abdomens with dark brown patterning on the dorsal surface. The wings typically have dark brown markings on a grayish or yellowish tan background. Green Drakes lose the dark dorsal coloration upon transformation to spinners, but Brown Drakes retain the dark dorsal patterns in the spinner stage. (If you use the site search function to compare the photos of Ephemera guttulata to the photos of Ephemera simulans found on this site, the differences should become fairly obvious.)
JacksonMay 27th, 2009, 10:34 am
Posts: 3Great info Gonzo! Thanks for the help. Jackson
MartinlfJune 10th, 2009, 7:23 pm
Moderator
Palmyra PA

Posts: 3233		I had very good luck with a pattern on the Delaware that uses a white foam post for the abdomen. It floats like a charm. Now to tie up some nuclear versions.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell

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: Thoughts
In Male Eurylophella Mayfly Spinner by Taxon		5Mar 7, 2013
by Entoman
Re: Spinner?
In Male Neoleptophlebia heteronea Mayfly Adult by Martinlf		1May 19, 2012
by Taxon
Re: fly names
In General Discussion by Konchu		2May 28, 2009
by GONZO
Re: Mayfly I.D.
In the Identify This! Board by 14Adams		6Jun 3, 2011
by Brookyman
Re: green drake
In Female Ephemera guttulata Mayfly Dun by Roytop		3Jun 1, 2011
by Troutnut
Re: Eastern Green Drake
In Female Ephemera guttulata Mayfly Dun by Wbranch		4Jan 28, 2010
by RleeP
Re: collected from Bitterroot yesterday Drake
In the Identify This! Board by Leskorcala		4Jun 17, 2020
by Leskorcala
Probably another E. vitreus
In Male Epeorus vitreus Mayfly Spinner by GONZO		0
Re: Brown Drake - emergence cycle???
In the Mayfly Species Ephemera simulans by AftonAngler		5Jun 8, 2006
by Wiflyfisher
Re: Flavalinea or Drunella Grandis
In the Identify This! Board by Byhaugh		10Dec 18, 2013
by Brookyman