This female dun emerged from a creek loaded with mature Cinygmula nymphs including this specimen, so they're probably the same species. Unfortunately there aren't species keys for either stage.This mayfly was collected from Green Lake Outlet on August 4th, 2020 and added to Troutnut.com on August 20th, 2020.
Start a Discussion of this Dun:
You must
log in at the top of the page to post. If you haven't registered yet, it's this easy: