Cluster Flies

As the warm weather fades, a very particular kind of fly begins gathering on the sunny sides of homes, crawling across window panes and slipping into gaps around the frames. These are cluster flies, and if you have ever wondered why large, slow-moving flies suddenly appear at your windows in the cooler months, the answer […]

In Spring and fall you may notice large, sluggish flies in your home; these are cluster flies. They are dark grey with black or silver, non metallic, checkered abdomens, and golden hairs on their thorax.  Their wings overlap when at rest, unlike house flies, and they are darker and slower.  They enter houses in the fall and […]