The Stenacron genus includes
one important species, the
interpunctatum. It is commonly
referred to as a “Light Cahill”.
These mayflies exist in both
eastern and mid-western rivers
and hatch during the summer.
They hatch over a long period of  
time and are a very important
mayfly.
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Nymph
Spinner
Emerger with
Trailing Shuck
Emerger
Dun
Mayflies: Light Cahill
Light Cahill (Imitations)
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Copyright 2013 James Marsh
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