Interactive Identification of Flies Insect Identification Laboratory Department of Entomology at Virginia Tech Identification of Flies Select the insect that most closely resembles the fly you have found. This set only covers the major pests and you may have something else. In that case you should contact your county extension agent. She is well trained in local insect problems.
Mosquitoes are similar to midges which lack the long mouthparts and have feathery antenna.
Moth flies are small gray flies that hold their wings over their body in a roof like manner. Fact sheet is on drain flies which is the other name for this pest. Associated with compost and rotting fruit and vegetables. This is one of the most common flies in attics and windows in the winter. Fact sheet is on the immature maggot stage.