Hex Mayflies
Hexagenia limbata
The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
Mayfly Species Baetis posticatus (BWOs)
Physical description
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.
Male Spinner
Wing length: ? mm
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.
Start a Discussion of Baetis posticatus
References
- Needham, James G., Jay R. Traver, and Yin-Chi Hsu. 1935. The Biology of Mayflies. Comstock Publishing Company, Inc.