Mayflies

Hexagenia species

A mayfly spends most of its life as a nymph underwater. This stage may last for several years. When the nymph is ready to emerge as an adult, it rises to the surface of the water, splits out of its skin, and expands its wings. Adult mayflies mate and then die. Some species live as adults for just a day, and others last a week. Many types of mayflies can live only in clean fresh water, so studying mayflies can tell us a lot about water pollution.

Look For : Yellow body, antennae, legs, and tails. Brown markings on head and abdomen. Clear, veined wings.

Length : 1 1/8".

Habitat : Lakes, rivers, ponds with silty bottoms.

Range : Eastern North America.