I find these large mayflies on the screens of my home on the Battenkill, in
Sunderland, Vermont. The little research I did suggests to me that they are the
gray drake, a siphlonuris. Opinion, if you can-
Bob-
Your mayfly is a Leptophlebia nebulosa male imago, commonly referred to
as a Black Quill spinner. If you look closely at the photo, you can barely see
the (shorter and much smaller diameter) middle tail, which identifies it as
Leptophlebia. The dark-brown cloudy outer third of the forewings identifies
it as L. nebulosa. The hyaline wings identify it as a spinner. The long
forelegs, large eyes, and forceps identify it as a male.
If you would like more
information concerning this mayfly, access my
Mayfly Species Detail Query, key nebulosa into the Taxon box,
and click the Submit Query button.
Roger
Created: 12/05/2006 Last modified:
12/05/2006
www.FlyfishingEntomology.com
