The Gray-winged Yellow Quill
is a clinger mayfly that is found
in moderate to fast flowing
streams. They emerge between
the bottom and reach the surface
of the water as  a dun. Trout eat
this mayfly in all stages of its life.
It is an eastern and mid-western
species that emerge during the
spring usually around noon.
Emerging Adult
Mayflies: Gray-winged Yellow Quill
Gray-winged Yellow Quill (Imitations)
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