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Baetis

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.

Female Ephemera varia (Yellow Drake) Mayfly Dun Pictures

This yellow drake dun hatched out of my aquarium over a month before her brethren in the wild are slated to emerge. She seems a bit small, and that might be the reason.

This mayfly was collected from Aquarium in New York on May 13th, 2007 and added to Troutnut.com by Troutnut on May 18th, 2007.

Discussions of this Dun

Beautiful yellow drake
Posted by GONZO on May 21, 2007
Last reply on May 21, 2007 by GONZO
This is a fine specimen of one of the prettiest mayflies, Jason. She is small compared to some limestone specimens, but well within range for the species. I've collected varia males as small as 12mm, but many of the limestone females are 19-20mm. I think premature hatching is to be expected in aquaria.

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