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Mayfly Sex Identification: Male or Female
Rolling thru my mayfly photos I was able to take a many pictures at one of the Spring Jams two years ago. I wanted to demonstrate the differences the differences between spinner (imago) male and female. These two coffin flies (Ephemera guttulata ) attached show these differences.
Male (top photo)
Long fore legs
Rear claspers or forceps at rear of body
Eyes on a male tend to be larger and more bulbus
Short fore wing
Forceps do not exist
Smaller flatter eyes
Posted on: 2012/4/19 7:36
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