The warmth of the home makes the flies active, and they often swarm into living areas. This is what causes conflict with man. In fact, the only damage you’ll likely see are small dark-colored spots of excrement on windows and walls. Be aware that cluster flies will release an unpleasant odour and may stain surfaces when squashed. Cluster flies can be recognised by their distinctive stripes behind the head, short golden hairs on their thorax and a mottled light/dark grey abdomen. So the real thing to do is to initiate a serious prevention plan. Many flies, like cluster flies, love the sunlight and warmth, which is often why they buzz against windows. It’s quite hard to find fly eggs, and once they hatch you’ll have a new generation to deal with. Cluster Fly larvae develop inside earthworms living in the ground outside of homes. How do I get rid of cluster flies? They cluster together in large groups on the sides of walls to soak up sun and stay warm. These flies are called cluster flies because of their behavior. This pheromone will linger on, even after all the flies have been destroyed and removed. In fact, most other flies live less than three months. Cluster flies are dull grayish-brown flies about 3/8-1/2-inch long, slightly larger than a house fly. This is because they are attracted to warmth. They live on earthworms and once pupating, they try and get out of the cold. At this point, there is no real “humane” approach when it comes to controlling these little intruders. To do that, you should use: Cluster flies are commonly found in quiet, undisturbed parts of your home, such as attics and wall voids. Pollenia. You can always swat or spray them, but a few other common pest control products should eliminate the flies. To endure the harsh winter, they will hibernate. Go look at google. Fly swatters can kill small numbers of flies, but be careful to not swat flies near food areas, so flying body parts don't get in the food. (Gross.) The thorax of an adult cluster fly is covered in short, golden hairs and the wings overlap when at rest. Clustering flies can be controlled by simply killing them with a fly swatter. Cluster Flies are colored a dark, non-metallic gray with light and dark markings on their abdomens. Now, Time To Finally Get Rid Of Drain Flies… If you did everything right (as described above), you have successfully removed the drain fly eggs and larvae. Share this Article: Share; Filed Under: More Info About Flies Tagged With: Information. Tan coloured body appears as grey. Eggs are laid on damp soil or beneath dead and rotting leaves. You may also notice that they tend to "cluster" on the sunny sides of homes. Appearance What Do They Look Like? The difference is their yellowish golden hairs on the thorax and a prominent dark and light coloured chequered pattern on their abdomen. They do not transmit disease. But, where do Cluster Flies come from? About Ankit Zadi . Cluster flies do not reproduce indoors, and home owners bothered by these pests do not need to fear the flies are "hatching" from a dead animal or other unpleasant material within the attic or walls. Cluster flies do not breed in buildings but leave hibernation sites in the spring (they often swarm onto windows on warm sunny days) to return outdoors for reproduction activity as noted above. By following these tips, you can do just that. The cooler weather chills the bugs down, making them fly slower than warm weather flies. These flies are aptly named cluster flies. They can also be released outdoors or vacuumed up and the vacuum bag disposed of. Here is the ultimate guide on how to get rid of cluster flies and prevent them from invading your home! They enter through cracks and crevices. It’s much easier to avoid letting pests reproduce in your home in the first place. Large Black Flies in the House. The adult flies are attracted to the sunny side of homes in the fall, looking for ways to get inside before winter. Fruit flies come from miles around because somehow they just know that there is fresh or ripening fruit to be had. Don't worry, Cluster Flies do not breed indoors. During the fall, cluster flies may congregate on the sunniest wall of your home and around exterior doors and windows. Devices designed to trap clustering flies are also offered on the market. Cluster Flies Facts, Identification & Control Latin Name. How do flies get inside my home? Flies are part of nature’s clean-up crew. IN YOUR LOFT SPACE DO NOT USE STANDARD ELECTRIC FLYKILLERS AS THEY ARE A SERIOUS FIRE HAZARD. Just as they become a nuisance in the fall while seeking hibernating quarters, they are also bothersome in the spring, trying to escape. Cluster flies are a nuisance pest but do not cause harm to humans as they do not carry disease. 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