Resting mayfly

Yesterday, the post was about a plant, the Canada Mayflower, that arrived early; today, it's an insect whose name is out of sync with the calendar. Mayflies spend most of their lives as underwater larvae, but when the weather warms and the increasing hours of daylight reach the bottom of streams and ponds, the members of the insect order Ephemeroptera emerge en masse, sometimes by the millions, to court, mate, and lay eggs. The Mayflies may arrive on the scene before May, but they certainly live up to their Ephemeroptera designation, going through their entire adult lives in anywhere from a few hours to a few days. Then, after copulating and egg-laying, they die in droves, leaving behind a generation that will emerge next spring, and hordes of fat and happy trout.