A ancient antagony between two highly competitive ants (Linepithema humile and Solenopsis invicta) from the same river basin in South America plays out again in North America where both have been introduced. Austin, Texas, USA

Solenopsis invictasolenopsis wagneriSolenopsisfire antfire antsred antspestspestpest antinvasive speciestramp antnonnative antsintroducedmyrmicinaeformicidaeHymenopterabiological invasionsinsectssocial insectscompetitionfightants fightingaggressionargentine antargentine antslinepithema humilelinepithemadolichoderinaeecologycompete