Crane flies are mostly a nuisance. Mature crane flies often annoy residents when they fly into homes and bump against the walls or ceilings. These flies invade home most likely looking for food or areas to lay their eggs. Although they look like giant mosquitoes. Wet springs are associated with a high emergence and large populations of adult flies. The adult stage of crane flies is harmless, the larvae feed on decaying-organic matter and thus assist in the biological decomposition process.
