Light and dark gray checkered abdomens.
Flies in the attic uk.
The grass flies or cluster flies or attic flies are the genus pollenia in the family polleniidae are completely harmless to human health.
Cluster flies are also known as attic flies.
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.
Appearance what do they look like.
This is the same family to which bottle or blow flies belong.
Cluster flies do not reproduce indoors.
And the easiest entrance is usually through external gaps leading to your attic.
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.
They are strictly parasitic on earthworms.
Cluster fly image licensed under cc.
Naturally your house is warmer.
They require warm places to hibernate over winter.
Cluster flies are common in the loft and attic spaces of homes and business premises.
They tend to travel in huge swarms of thousands of flies.
Their aim is to over winter and they can find their way into loft attic or roof void spaces.
A cluster fly is very much similar to a house fly.
You may see a large group of cluster flies around a window as they are attracted to the light on sunny winter days.
The thorax of an adult cluster fly is covered in short golden hairs and the wings overlap when at rest.
The females lay their eggs near earthworm burrows and the larvae then feed on the worms.
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.
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.
The tendency of clustering in large numbers inside attics.
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.
Thus the common name they have of attic flies.
Cluster flies seek refuge in cold weather and find their way into attic spaces and similar areas indoors.
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 flies are commonly found in quiet undisturbed parts of your home such as attics and wall voids.
Most commonly they move from the ground to your attic for the winter when it gets cold.
Along the roof or attic.
Although cluster flies don t pose a direct health risk to humans they can be an annoyance.
By instinct they seek shelter away from the elements such as in the fall when it gets cold.
Cluster flies are often known also as attic flies.
Cluster flies facts identification control latin name.
What are the risks of a fly infestation.
Cluster flies come from the calliphoridae family.
Adults measure 8 to 10 millimeters.