The anomaly is that cluster flies may try to get into one house but may stay clear of a neighbouring house even if it is a pair of semi detached properties.
Flies in attic room.
Their aim is to over winter and they can find their way into loft attic or roof void spaces.
Unlike more familiar blow flies such as the bluebottle genus phormia they do not present a health hazard because they do not lay eggs in human food.
This is the same family to which bottle or blow flies belong.
Flies that gather in roofs around windows and on walls inside in the autumn and winter are called cluster flies also known as attic flies.
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.
The tendency of clustering in large numbers inside attics.
Cluster flies are common in the loft and attic spaces of homes and business premises.
This name describes its characteristics very well i e.
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.
Cluster fly image licensed under cc.
The warmth generated here means that flies are naturally drawn into these cavities and voids particularly during the months of october and november where they congregate in groups or clusters.
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.
Most commonly they move from the ground to your attic for the winter when it gets cold.
By instinct they seek shelter away from the elements such as in the fall when it gets cold.
Cluster fly larvae develop inside earthworms living in the ground outside of homes.
And the easiest entrance is usually through external gaps leading to your attic.
Cluster flies are often known also as attic flies.
Cluster flies are also known as attic flies.
Adults measure 8 to 10 millimeters.
Light and dark gray checkered abdomens.
A cluster fly is very much similar to a house fly.
Cluster flies come from the calliphoridae family.
The thorax of an adult cluster fly is covered in short golden hairs and the wings overlap when at rest.
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.
Cluster flies also known as attic flies are household pests.
Cluster flies do not reproduce indoors.
Naturally your house is warmer.
Thus the common name they have of attic flies.