What is "chironomidae"

The Chironomidae (informally known as chironomids, nonbiting midges, or lake flies) are a family of nematoceran flies with a global distribution. They are closely related to the Ceratopogonidae, Simuliidae, and Thaumaleidae. Many species superficially resemble mosquitoes, but they lack the wing scales and elongated mouthparts of the Culicidae.