This specimen was one of my first attempts to do a "wingprint" to digitally enhance an image of the wing venation for identification purposes.  I didn't have the background far enough back to be out of focus -- a mistake I later corrected.  Male Ephemerella invaria (Sulphur Dun) Mayfly Spinner from the Teal River in Wisconsin
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This specimen was one of my first attempts to do a "wingprint" to digitally enhance an image of the wing venation for identification purposes. I didn't have the background far enough back to be out of focus -- a mistake I later corrected.
Male Ephemerella invaria (Sulphur Dun) Mayfly Spinner from the Teal River in Wisconsin

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