Re: Western Leadwing
Received: Friday, June 03, 2005 8:08 PM
Having trouble locating information about the "western leadwing." I'm
told it's occasionally the main event on Oregon's upper Williamson.
Got a link for me? Thanks.
Leadwing is the common name for genus Isonychia. Here is a link to Westfly's Page on Isonychia: http://www.westfly.com/ento/mays/isonychia.htm
Here in the west, Great Western Leadwing and Slate Drake are the names most commonly associated with Isonychia campestris, I. sicca, and I. velma. From my available sources, I am unable to verify that "it's occasionally the main event on Oregon's upper Williamson."
As a matter of fact, Westfly doesn't even list it as one of the hatches for
the Williamson, and the only reference I could find in Hafele/Hughes' Western
Mayfly Hatches tying Isonychia to the Upper Williamson, was a reference
to (the late) Polly Roseboro once having discovered a single Isonychia velma
nymph in a stomach sample among many Hexagenia nymphs in a trout taken
Hope this helps. If you have follow-up questions, don't hesitate to ask.
Created: 08/13/2005 Last modified: 08/25/2006 www.FlyfishingEntomology.com