Populations found outside North America originate from the United States. In 2011, the DNA of specimens from Australia, China, and Taiwan was analysed with results showing that they are related to those in the United States. Despite its spread, "S. geminata" has a greater geographical range than the red imported fire ant, but it can be easily displaced by it. Because of this, almost all of its exotic range in North America has been lost and the ant has almost disappeared there. On roadsides in Florida, 83% of these sites had "S. geminata" present when the red imported fire ant was absent, but only 7% when it is present. This means that the ant can probably invade many tropical and subtropical regions where "S. geminata" populations are present.