The cluster fly is a type of fly that is 8 mm to 10 mm long when adult. Its body is gray-black with several black and silver stripes and many golden hairs on the thorax.
The cluster fly female lays an average of 100 to 130 eggs per group, dropping them on the ground and moving further to drop others. The larvae that emerge from the eggs develop as parasites inside earth worms. It takes between 27 and 39 days for the cluster fly develop to the adult stage.
When cold weather arrives, cluster flies seek refuge in homes and look for hidden places, such as space between walls, attics, closets and empty rooms. Cluster flies are attracted by ultraviolet rays so are often found in groups around windows or on a sunny wall. They feed on nectar, fruit juice and tree sap.
Cluster flies can leave unpleasant stains on walls and curtains. Although they do not cause damage, they often die trapped in structures and attract other types of infestation such as larder beetles.
Cluster flies do not hide during the day but seek the sunlight in groups, buzzing around windows or settling on sunny surfaces. Small stains on curtains or walls can also indicate the presence of a large number of cluster flies.
Cluster flies are invading your home and you urgently need an exterminator? AJS Extermination experts will quickly get rid of this parasite or any other insect and rodent.
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