A queen Neivamyrmex opacithorax army ant surrounded by her much smaller worker offspring. Chiricahua Mountains, Arizona, USA

Neivamyrmex opacithoraxneivamyrmexarmy antecitoninaeformicidaehymenopteraworker antsarmy antsarmy ant queenqueen antsgynecastesocial insectsfemalesreproductive castesecologyapterous queensapteryworker and queen antsgynesbiologytrailemigration