Callibaetis
I believe this is a female Mayfly I found at Bear River MBR. The females have the coloring on the wings. © Carol Davis, 4-22-2009
This appears to be a male mayfly as there is no coloring to the wings. Antelope Island - © Carol Davis, 9-18-2008
I think this one just shed it's skin (exuvia), that's why it looks so perfect and white. I understand the colors fill in later.
Below is a mayfly exuvia. Taylorsville, UT - © Carol Davis 9-18-2008
This is Mayfly exuvia I found near my back door. Very cool. © Carol Davis
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