Where did a bunch of black flies in house come from?

Black flies, also known as buffalo gnats, are small, dark-colored flies that are found in many parts of the world. They are a common nuisance, and can be a health risk if they bite.

There are a few different ways that black flies can get into your house. One way is through open doors or windows. Black flies are attracted to light, so they may fly in when you open the door or window, especially if the light is on.

Another way that black flies can get into your house is through cracks or gaps in the walls or foundation. Black flies are very small, so they can easily fit through small openings.

If you have a lot of black flies in your house, there are a few things you can do to get rid of them. One way is to use a fly swatter or fly paper to kill them. You can also use a vacuum cleaner to suck them up.

To prevent black flies from getting into your house, you can keep your doors and windows closed, especially when the lights are on. You can also seal any cracks or gaps in the walls or foundation.