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.
Most physical descriptions on Troutnut are direct or slightly edited quotes from the original scientific sources describing or updating the species, although there may be errors in copying them to this website. Such descriptions aren't always definitive, because species often turn out to be more variable than the original describers observed. In some cases, only a single specimen was described! However, they are useful starting points.
Abdominal tergites 2-6 of male imago greenish white, hyaline.
Turbinate eyes reddish brown. Thorax black. Legs white, the fore femur obscure. Wings hyaline. Abdomen greenish white, hyaline, on segments 2-6; the apical segments fuscous. Tails white. This species is little known up to the present time.