06/26/10
Insects and other foods the trout may be eating:
1.    Blue-winged Olives
2.    Cinnamon Sedges (Caddisflies) (Abrams Creek)
3.    Green Sedges (Caddisflies)
4.    Little Sister Caddisflies (Abrams Creek)
5.    Eastern Pale Evening Duns
6.    Sulphurs
7.    Little Yellow Stoneflies -Yellow Sallies
8.    Slate Drakes
9.    Light Cahills
10.  Little Green Stoneflies
11.  Golden Stoneflies
12.  Cream Cahills
13.  Ants
14.  Inchworms
15.  Beetles
16.  Grasshoppers
17.  Hellgrammite
18.  Cranefly
19.  Sculpin, baitfish and small crayfish (Imitate with streamers)

Cream Cahills - Emergers

The information I can find in the many books I have on fly fishing entomology (All
that has been printed as far as I can determine) has conflicting information about
the hatches of the Cream Cahill mayflies. They seem to get the species the same
but describe the way they hatch differently. Although I am appreciative of the work
and effort put forth by most of the writers of the aquatic insect books on trout
fishing, I have discovered many errors that have been put in print as well as
differences from one book to the next.

A few years ago, I attempted to raise some in aquarium but as with most of the
clingers, I couldn't keep enough oxygen in the tank for them to survive. I'm not even
sure it that would be a true test anyway.

It appears to me that most of these species hatch in the evenings. I have not found
many newly hatched duns. It seems you just discover the duns on the stream (from
the night before) and never see them hatching. Most species hatch during the warm
months of the year (late June, July and August in the Smokies) and must hatch
during the evenings. I would assume they hatch in the surface skim but I do not
know for certain. Most of the authors of the books I have say they hatch in the
surface skim but I know for a fact, a lot of copying goes on regarding this. Some
clingers hatch in the surface skim and some below the skim or between the bottom
and the surface. I do not know for certain in this case.

I do know that we have been able to catch plenty of trout using imitations of the
emergers late in the day just before dark. When I say late in the day, I mean after
the sun has set. If you try it before then, you may be disappointed in the results.

Present the emerger imitations, both trailing shuck and the regular emerger, in the
current seams along edges the fast water of the runs and riffles. I prefer to use a
short up stream, or up and across stream presentation. The fly should drift in the
surface skim. You will not have any trouble detecting the strikes provided you don't
make a long cast.
"Perfect Fly" Cream Cahill Emergers
I still haven't found
time to look for
better images of the
Cream Cahills, but
meantime here is
another one that
shows a Cream
Cahill slightly better
than the one I
posted the other
day. By the way, this
is both a male and
female. The one with
the little eyes is the
male and the big
eyed one is the
female. You should
start seeing plenty of
these late in the day,
especially in the mid
to high elevations.
We do know that all emerging
mayflies that hatch in the skim
are darker when they first
emerge (when they are still
more nymph than dun) and
become lighter as they shed
their nymphal shuck (more like
the dun). That is the reason we
have the difference in shades
of color of these two flies. The
trailing shuck version, which
represents the almost dun
stage, is lighter more like the
dun. It has an Antron shuck. Do
not add floatant to these flies.
They will turn over on their
sides if you do. You want the
CDC to float flush with the
surface. . .