A different species of ants, called “crazy ants,” is taking the Southeastern United states by storm. They are called “crazy” by researchers because their movement is not consistent, but much more irregular than fire ants, whose presence has been threatened by the incoming species.

The “crazy” ants, whose scientific name is “Nylanderia Fulva,” thrive in warmer coastal areas and migrate from Argentina and Brazil. They are also called “Rasberry” ants because they were discovered by a Houston exterminator named Tom Rasberry in 2002.

They don’t sting, but they are great trouble, finding small spaces and damaging electrical equipment.

The “crazy” ants have been found as far west as Texas and as far east as Mississippi, and seem to die in dry or cold regions. The saving grace of the “crazy” ants is that their mobility is more limited than fire ants; they can only spread 200 meters per year on their own. Unfortunately, they can be spread through human transportation. Residents who live in the frequented areas and travel are being warned to be alert for their presence.