This smaller Isonychia nymph was caught with a bunch of bicolor specimens, but it does not have the fluffy spine structure at the base of its gills. This might mean it's Isonychia sayi, or it might just be a bicolor nymph too young to have developed those structures.
This mayfly was collected from the Namekagon River on January 13th, 2004 and added to Troutnut.com on January 25th, 2006.
Start a Discussion of this Nymph:
You must log in
at the top of the page to post. If you haven't registered yet, it's this easy: