Thus the common name they have of attic flies.
Flies in attic winter.
Attic flies common this winter by donald lewis department of entomology the large black pesky flies that show up in bed rooms and on window sills from late fall through early spring have been very abundant this year possibly because of the wetter than normal weather we had last summer.
Cluster flies prefer warm areas so homeowners often find them flying around houses on sunny days in the winter and late fall months.
Entry entering living spaces by way of electrical outlets or baseboards the pests take shelter in attics and walls to hibernate awaiting the arrival of warmer spring weather.
These insects are born out of earthworms if you can believe that and like to overwinter in protected areas.
These eggs hatch throughout the winter and the little flies have nowhere to go but the home.
Some species of flies such as face and cluster flies lay eggs in the cracks and crevasses of a home.
Flies are an expected nuisance in the spring and summer but some homeowners will find themselves in the midst of an infestation in cold winter months.
One of the best tips for getting rid of attic flies is to keep them from entering the house in the first place as trying to eliminate them after they are in hibernation can be difficult.
Attic flies which are also known as cluster flies are insects that often migrate into homes in the fall where they hibernate for the cooler fall and winter months.
These are not the same as the blue bottles that buzz hard against the windows in the warmer weather or the house flies and smaller flies that are active in summer too.