I also found a Mayfly recently (For future reference this was posted shortly after Rik posted a Mayfly stack over in the Nature forum).
Here's a stack, not a portrait for a change!
In case it's not obvious that isn't an alignment issue on the wing, that's the other wing showing through.
Stack of 21 images with E330, Olympus 38mm Macro bellows lens at minimum OM Bellows extension. Olympus STF-22 twinflash. Stacked with Zerene.
Mayfly
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