Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
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.
Like most common names,"Sulphur" can refer to more than one taxon. They're previewed below, along with 6 specimens. For more detail click through to the scientific names.