Lady Bugs, over 5,000 species of them, are a common visitor to warm buildings in the winter. When the days begin to cool they leave their feeding spots in fields, forests and lawns and swarm to a warmer climate such as large structures and dwellings, especially those in the suburbs and country settings. It is not unusual for country homes to host a large number of the insects, at times over one hundred. Although they are able to penetrate almost any building it appears their longevity is rather short.