Definition of Argentine ant in English:

Argentine ant


  • A small South American ant that has become established in parts of the US.

    Iridomyrmex humilis, family Formicidae

    ‘‘We would expect the set of problems we see with Argentine ants in South Africa to occur in other habitats invaded by small ants,’ he said.’
    • ‘Suhr said the Argentine ants killed native ants and the insect life they normally preyed upon, posing a major threat to biodiversity.’
    • ‘Instead of sending out reproductives to a mating flight as most ants do, the Argentine ants reproduce by budding.’
    • ‘To see how Argentine ants fared when invading Europe, Keller and his colleagues collected ants from 33 spots along the coast from northern Italy to northwestern Spain.’
    • ‘In their native home of South America, Argentine ants are genetically diverse, and their colonies seldom exceed the size of a football field because of turf squabbles, Tsutsui says.’
    • ‘And farmers routinely see aphids and scale insects - which the Argentine ants protect from parasites in exchange for the insects' sweet secretions - ravage their crops.’
    • ‘The Argentine ant, which is now the most common ant in many urban areas of this country, was first noticed in 1891, in Louisiana.’
    • ‘Unlike fire ants, which are known for their aggressive behaviour towards humans, the Argentine ant looks just like the average household ant.’
    • ‘The Argentine ants were accidentally introduced to Europe around 1920, probably in ships carrying plants, Keller said in an interview via electronic mail.’
    • ‘Previous studies indicate that extreme unicoloniality may have arisen in introduced populations of Argentine ants after the loss of genetic diversity during introduction.’
    • ‘Sanders attributes the Argentine ants ' success primarily to its superior foraging and piracy of other ants' food finds.’
    • ‘The Argentine ant, Linepithema humile, exhibits well-developed nestmate discrimination that functions to maintain distinct colony boundaries in its native South American range.’
    • ‘A previous study suggested that male and female sexuals of the Argentine ant Linepithema humile (previously Iridomyrmex humilis) may use genetic cues to avoid inbreeding.’
    • ‘At the base of another oak, everyone is on hands and knees, mesmerized as an Argentine ant struggles with a dead beetle, while two more push, pull, and roll a torn-off white spider abdomen down a hole.’