Blog & Latest Updates
Fly Fishing Articles
Insects by Common Name
|Byhaugh||January 13th, 2014, 9:46 pm|
Have only seen a few of these out West in Eastern Idaho, not far from Yellowstone Park on the Henry's Fork.
Is this an Epeorus Pleuralis???
Here is the bug:
|Taxon||January 14th, 2014, 1:24 am|
Site EditorPlano, TX
As can be seen: Epeorus pleuralis is limited to NE and SE N. America distribution. I believe this male imago to be Epeorus grandis, which is present in Idaho.
|Crepuscular||January 14th, 2014, 9:14 am|
|Byhaugh||January 14th, 2014, 3:16 pm|
|Couldn't possibly be a heptagenia as in the Pale Evening Dun common name?|
|Entoman||January 14th, 2014, 5:40 pm|
I wouldn't rule out Heptagenia just yet. For the reasons Taxon stated, this is definitely not a Gordon Quill. We can probably rule out western Epeorus species for other reasons. They (Epeorus) have contiguous eyes (or nearly so), and most importantly lack a transverse mesonotal suture. The costal crossveins usually have some rearward slant to them and are usually paler pigmented. Leg maculation shown in your photo is problematic as well. I have an idea but it would be very helpful if you could provide size and date with your ID requests. Do you (hopefully) remember?
|"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|
|Byhaugh||January 14th, 2014, 9:16 pm|
|It was July 6, 2013. It was mid-morning. It was on the Madison, just upstream of the confluence with Westfork. Was a bright sunny day. Insect was a size 13 or 14.|
I originally said the Henry's Fork, but checked and it was the Madison.
|Entoman||January 15th, 2014, 6:07 am|
|Very helpful, thanks. Can't quite make out the type of curvature of the mesonotal lateroparapsidal sutures (near the curved brown lines running horizontally along the top of the thorax) so there are several genera that can't be eliminated with meso suture characters alone. However, I think your second idea is probably the right one. Time of year, coupled with size and location make me think of a couple of species of Heptagenia known locally as Ginger Quills or Pale Evening Duns. Unfortunately, color is not necessarily the best way to tell the species apart, as some can be lighter or darker depending on many things. PED works better with paler and more yellowish varieties, so I'll go with Ginger Quill.:) Here's an example of a Heptagenia specimen very similar to yours. http://www.troutnut.com/specimen/1054|
I believe I have fished this spinner fall before but it has been many years. From what I remember, it was a cinnamon looking critter with kind of a pearlescent look to the middle terga (abdominal segments). The legs, cloudy grey stigmatic region (upper leading edge) of the fore wings and pale speckled tails look right too. Is that what they looked like in the hand to you? Bugs look different in blown up pictures...:)
PS. Since you weren't boating through quickly, did you notice any of the duns hatching, mixed with those spinners? Was the spinner fall lengthy and/or prolific?
|Byhaugh||January 15th, 2014, 2:38 pm|
Thanks for the analysis.
It was the only insect like it that I noticed that day. Sort of a loner.
There were swarming caddis all over and that is what we were using and catching with.
I did not know that there were Ginger Quills around there.
If you don't mind, what is the latin name for a ginger quill?
Would it be the S. heteratarsale spinner?
|Entoman||January 16th, 2014, 4:38 am|
|You're welcome, Byron.|
Yes, we have many mayfly species commonly referred to as Ginger Quills out West. There are also many back East. Your other question has no answer as there is no direct correlation between the Latin and the common. The reason for this is while scientific names are predicated on the identification of a particular species, common names are applied on the basis of appearance and vary by region. Individual common names are applied to multiple species with similar appearance. Conversely, many individual species have multiple common names to cover their various different looking forms.
Also, the eastern inhabiting Stenonema heterotarsale was synonymized with Stenacron interpunctatum quite some time ago and is no longer a valid species name. Interpunctatum now contains many different appearing forms once thought to be separate species. The list of common names in current use for it does include Ginger Quill and Yellow Quill among others but most popular are derivatives of Cahill, i.e. Summer Cahill, Light Cahill, Pale Cahill, Cream Cahill, etc., etc...
|Byhaugh||January 16th, 2014, 1:56 pm|
|Someone else said it is Epeorus Albertae????|
|Entoman||January 16th, 2014, 2:52 pm|
|Whoever said that is wrong, Byron.|
As I mentioned earlier, Epeorus species have eyes that meet in the middle and smooth mesonotums. It is a little difficult to make out but your specimen has space between its eyes and a transverse mesonotal suture. Albertae (Pink Lady, Yellow Quill, etc.) has additional features that rule it out. Check out this example: http://www.troutnut.com/specimen/926
Besides smaller size and pale cross veins, notice the banded femora and thick black humeral vein? It looks like a small black dot on the lower leading edge of the wings.
|Re: New Mexico ???|
In Beginner Help by Hankaye
|3||Apr 19, 2013|
|Re: Thoughts on this Heptageniid's ID?|
In Male Epeorus vitreus Mayfly Dun by Troutnut
|1||Oct 28, 2008|
In the Identify This! Board by Willmilne
|5||May 19, 2009|
|Re: fly names|
In General Discussion by Konchu
|2||May 28, 2009|
| Looks like Leucrocuta|
In Female Leucrocuta hebe Mayfly Dun by GONZO
|Re: 2 tail|
In the Identify This! Board by Sandfly
|4||Nov 12, 2011|
|Re: mayfly common names|
In General Discussion by Konchu
|10||Nov 30, 2006|
|Re: Site updates from October 5, 2011|
In Site Updates by Bnewell
|1||Oct 6, 2011|
|Re: One should report fishing report even when not much to report...|
In the Photography Board by Oldredbarn
|15||Oct 3, 2012|
|Re: Maccaffertium spinner, maybe??|
In the Identify This! Board by Wiflyfisher
|9||Jun 13, 2008|
|Most Recent Posts|
|Re: Optics for fly fisherman|
In the Photography Board by Jmd123 (Wbranch replied)
|Re: When the hatch don't match|
In General Discussion by Red_green_h (Jmd123 replied)
|Re: Looking for a leader formula...|
In Gear Talk by OldHasBeen (Wbranch replied)
|Re: Moving to Utah - general questions|
In General Discussion by Bigfootry (Martinlf replied)
|Re: The Boys Were Back in Town, Chapter 5: "Town and Country"|
In the Photography Board by Jmd123 (Martinlf replied)
|Re: Selecting a reel|
In Beginner Help by AllanM83 (Red_green_h replied)
|Re: Views from the Parks Highway|
In Site Updates by Troutnut
|Re: The Boys Were Back in Town Chapter 5, part 2 of "Town and Country"|
In the Photography Board by Jmd123
|Re: Glossosoma intermedium or nigrior|
In the Saddle-case Maker Genus Glossosoma by Wiflyfisher
|Re: MIDGES: who's got a good pattern that works consistently?|
In General Discussion by Jmd123