Ladybug Infestation! LadyBugs are In my HOUSE! A. They have probably been hibernating under the sliding of the house or apartment and the warmer temperatures have caused them to emerge- it's just that they are going in the wrong direction. You would think that they would be trying to get out of the house, but they are coming in. It happens. This happens because of the variation in temperatures from the interior of the home verses the outside temperatures. The ladybugs are merely confused.