Troutnut.com Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

Mayfly Species Drunella spinifera (Western Slate Olive Dun)

This taxon prefers cold water and does not flourish where water temperatures exceed 60 degrees. As with the slightly larger Drunella coloradensis, this species prefers cold tailwaters, high elevation headwaters and spring creeks.  

Where & When


Region: West

Time Of Year (?): August and September

This species is most prevalent near the Pacific Coast, but scattered local populations occur throughout the northern states of the West.

Spinner Behavior


Time Of Day: Dusk

These spinner flights are too sparse to be important.

Your Thoughts On Drunella spinifera:

You must log in at the top of the page to post. If you haven't registered yet, it's this easy:

Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.

Warning: Invalid argument supplied for foreach() in /home/jasonn5/func/commoncontent.fnc on line 182
Top 10 Fly Hatches
Top Gift Shop Designs
Top Insect Specimens
Miscellaneous Sites