What are tawny ants? Maybe you’ve heard of them but called by another name: Rasberry crazy ants. These ants are an exotic invasive ant species that was introduced into Texas in 2002. Since then, they’ve been a very big problem for home and business owners across the state. They were first identified in Houston but have spread throughout southeast Texas and into Mississippi, largely thanks to the help of people, who are unknowingly transporting them in their travels.  The problem of tawny ants is getting worse, but there are a few things you can do to help limit them on your property.