This picture very understandably confused one reader into thinking Siphloplecton has three tails, but it only has two. In this one, the "tail" on the right is a very unfortunately placed, tail-looking piece of debris, but if you look closely you can see it doesn't actually link up with the abdomen.
Male Siphloplecton basale (Pseudo-Gray Drake) Mayfly Spinner from the Namekagon River in Wisconsin
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