Flyfishing Entomology


Re: Vermont Mayfly

From: Bob
Received: December 5, 2006 5:43 PM

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-


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.


Created: 12/05/2006   Last modified: 12/05/2006    www.FlyfishingEntomology.com