Transitory Wing

Ephemeroptera -- Mayflies -- an order of insects so short-lived, they are named for that characteristic. At the risk of anthropomorphizing ... that would be somewhat disheartening.

From Wikipedia: "The primary function of the adult is reproduction; the mouthparts are vestigial, and the digestive system is filled with air ... The majority of the life of the adult is spent in mating swarms."

Hmmmmmmmmmmmm....