As if making the transition from aquatic nymph to airborne adult (imago) wasn’t enough, mayflies do so without passing through a pupal stage. Instead, they emerge from their nymphal shuck with fully formed wings as a subimago, somewhat drab and not yet sexually mature. After a short rest with nothing to eat, they shed their skin one more time, spread their clear wings and join others of their kind for the first and only sexual experience of their lives.
Random handing-off of sperm packets is probably more like it and there’s no regretting one’s choice, for they all soon will be dead. Such is the life of a mayfly. Continue reading