Pavement ants are among the most common species of ants found throughout Southwestern Ontario. In fact, they are so common that they are rarely regarded as serious pests. These are the ants that you might see on sidewalks or your driveway crawling from small mounds of sand that often seem to appear overnight. Even though they are less harmful than many other insects, they can still cause problems in your home if they aren’t kept in check. If you aren’t sure whether or not you have a serious pavement ant infestation, consider these tips for identifying the insects and keeping them out of your home.