Traits: Adults have wings covered with hairs. Long antennae. Larvae have hooklike parts at the ends of their abdomens and some have featherlike gills.

Habitat: Adults are nocturnal and rest in cool, dark places. Larvae live in ponds, lakes, and streams.

Foods: Adults eat flower nectar. Larvae eat aquatic plants, algae, diatoms, and aquatic insect larvae.

Eaten by: Diving beetles, frogs, fish, waterfowl, shorebirds

Do You Know? Many larvae build cases made of leaves, twigs, or sand in which to pupate.