You may have noticed ladybugs (Asian lady beetle bugs) crawling on the inside and outside of your windows. Winter is over and they are trying to get back outside after wintering somewhere in your house. You will find more of them on the walls of your house that receive afternoon sun. They are completely harmless but can be a nuisance. My youngest daughter called me to come up and remove one from her bathroom the other day. I got rid of it and on the way down the stairs I mumbled that's the first of about a thousand more she will see. Fortunately my daughter did not hear this comment but my wife did and I received the wife death ray stare.
According to entomologist, Dr Nancy Breischrom from the University of Maryland, from about 1960 until 1990 the USDA brought them in from Asia to control pests, mainly aphids and scale insects that were eating our apples and pecans. They were first found in swarms in Louisiana in 1988. The USDA imported lady bugs into Louisiana, Georgia, Mississippi, South Carolina, Maryland, Pennsylvania, Connecticut, Washington, and California. Lady beetle bugs can now be found in most of the U.S. and parts of Canada. These insects have no natural predators. You do not want to smash them or some discoloration may occur where you swat them. They will eat pests in your yard and will not harm or eat any of your flowers or shrubs. These insects do not eat wood, food or clothing nor do they breed inside your house.