August 1996
SIZE: From 3/16 to 1/2 inch (5-12.7mm)
COLOR: Pale
DESCRIPTION: Name applies to mosquito-like flies in the family Chironomidae. They are different from mosquitoes in that female midges don't bite; males have large, bushy antennae. Adults produce a high-pitched humming sound when they swarm.
HABITAT: Adults frequently collect in large swarms in late afternoon or evening near streams, ponds, and lakes. They are often attracted to outdoor lights of houses close to these swarming sites.
LIFE CYCLE: Midges breed chiefly in water, but some develop in decaying vegetation, manure, or under the bark of trees. Because larvae occur in huge numbers in water, they are an important source of food for many species of fish. Adults emerge in the spring, frequently in large numbers.
TYPE OF DAMAGE: Although they do not bite, the adults can be a severe nuisance simply by their numbers.
CONTROL: Nearly impossible since streams, ponds and lakes cannot (and should not) be treated with insecticides to control these flies. Fogging for adults is not practical.
INTERESTING FACTS: Often mistaken for mosquitoes. The difference is that female mosquitoes do bite; female midges do not.