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Mayfly Species Anafroptilum album (Tiny Sulphur Dun)

Pictures Below
This is the most commonly mentioned species of Centroptilum in angling books, but very little detail is ever given about its hatches. It has been reported to inhabit warm water, but information regarding cold water habitat is sketchy.  

Where & When


Regions: East, Midwest, West

Time Of Year (?): June to October

Preferred Waters: Streams and lakes


Nymph Biology


Current Speed: Slow to moderate

Environmental Tolerance: Prefers warm water

Pictures of 1 Mayfly Specimen in the Species Anafroptilum album:

Female Anafroptilum album (Tiny Sulphur Dun) Mayfly DunFemale Anafroptilum album (Tiny Sulphur Dun) Mayfly Dun View 3 PicturesApprox. 5 mm. This is a very significant hatch. It is mostly seen at the height of Summer and I was very surprised to see it emerging this late in the season and in such numbers. When this one is emerging, the fish can become quite selective.
Collected November 9, 2011 from the Fall River in California
Added to Troutnut.com by Entoman on December 10, 2011

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