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Sulphurs

Scientific Name
MatchScientific Name
***Epeorus vitreus


This very common name can also be spelled "sulfur," as can the metal and color after which the mayflies are named. Fishermen use both spellings frequently, and according to the dictionary both are correct.


This common name refers to only one species.

Mayfly Species Epeorus vitreus

These are often called Sulphurs.
This is the second most common Epeorus species in the East and Midwest. Most anglers will encounter sporadic hatches of Epeorus vitreus once in a while, and sometimes a more concentrated emergence causes a good rise of fish.
Epeorus vitreus (Sulphur) Mayfly NymphEpeorus vitreus (Sulphur) Mayfly Nymph View 6 Pictures
Collected February 7, 2004 from in
Added to Troutnut.com by on January 25, 2006
Male Epeorus vitreus (Sulphur) Mayfly DunMale Epeorus vitreus (Sulphur) Mayfly Dun View 4 PicturesThis is my favorite mayfly from 2004, and it appears on my popular Be the Trout: Eat Mayflies products. Check them out!

Its identification is really up in the air. It might be a late-season vitreus dun but it may very well be one of the more obscure species in that genus.
Collected September 2, 2004 from in
Added to Troutnut.com by on January 25, 2006
Female Epeorus vitreus (Sulphur) Mayfly SpinnerFemale Epeorus vitreus (Sulphur) Mayfly Spinner View 7 Pictures
Collected June 2, 2005 from in
Added to Troutnut.com by on May 24, 2006
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