- Cluster flies are large black coloured flies with the scientific name ‘Pollenia rudis’, they show up in homes from late fall through early spring.
- A Cluster fly is very much similar to a house fly.
- Cluster flies come from the ‘Calliphoridae’ family. This is the same family to which bottle or blow flies belong.
- Cluster flies are also known as attic flies. This name describes its characteristics very well i.e. the tendency of clustering in large numbers inside attics.
- Unlike blow flies, cluster flies do not reproduce indoors and so home owners do not have to worry about the flies originating from a dead animal carcass or any other unpleasant material within the attic or walls.
- Cluster flies emerge in the summer or autumn. Often in large numbers, they enter houses in order to find some warm places where they can hibernate.
- These flies do not bite humans and are strictly parasitic on earth worms.