07/05/12

Insects and other foods the trout should be eating:
Hatching:
1.    BWOs (Eastern)
2.    Green Sedges (Caddisflies)
3.    Cinnamon Caddis (Mostly Abrams Creek)
4.    Cream Cahills
5.    Little Yellow Stoneflies (Little Summer Stones)
6.    Sulphurs
7.    Slate Drakes
8.    Little Green Stoneflies

Most available/ Other types of food:
10.  Sculpin, Minnows (Streamers)
11.  Inch Worm (moth larva)
12.  Beetles
13.  Grasshoppers
14.  Ants

Eastern Blue-winged Olives

Not all the mayflies in the "catch all" Blue-winged Olive common name category are swimming
nymphs like the
baetis species. Some mayflies called Blue-winged Olives are more
appropriately called Eastern Blue Winged Olives. Some other species are more
appropriately called Little Eastern Blue Winged Olives. There's a few of these
Drunella
species that are crawler nympsh that are found in the park's streams. They are fairly
common but they almost never hatch with any consistency. They are usually a hook size 16
or 18, depending on the species. One species gets as large as a hook size 14.

Small Eastern Blue-winged Olives is the common name for certain
Attenella species.
These are just another Blue-winged Olive mayfly to most anglers and there's nothing wrong
with that as long as you understand a few differences in them and the early spring and fall
hatches of BWOs. The biggest difference it they hatch on the bottom and should be imitated
differently than most of the other Blue-winged Olive  species. They are a hook size 18. I will
get into these when I finish the
Drunella species.

The Eastern BWOs, orspecies of the
Drunella genus, are in the Ephemerellidae family.
Those of you familiar with the Western Green Drake may be surprised to know that the
Eastern Blue-winged Olive is in reality closely related to a small Western Green Drake.

For the most part, these Olives hatch in the Summer and early fall months when other
hatches in the Smokies are few and far between. As just mentioned, these mayflies don't
hatch in large quantities but they do provide some activity when other mayfly hatches are
slack. These are the species known to exist in the Great Smoky Mountains National Park.

Drunella allegheniensis  
Drunella conestee  
Drunella cornuta  
Drunella cornutella  
Drunella lata  
Drunella longicornis  
Drunella tuberculata  
Drunella walkeri  
Drunella wayah  

These are fat little bugs unlike the slim BWOs that are swimmers. They also have 3 tails
and a hind wing unlike most other BWOs species. This one was found under a leaf on a
tree on Little River near Elkmont in late June. The image was taken by putting a rock and
the dun on my leg. It amazes me why at times mayflies won't fly off and other times it is
impossible to keep them from flying This one is about a hook size 16.
Copyright 2012 James Marsh