Eciton setigaster

Les fourmis légionnaires (Eciton) sont un genre de fourmis américaines qui forment des colonies nomades de 150 000 à 700 000 individus. La reine peut pondre jusqu'à 50 000 œufs par jour, suivant la période. Les ouvrières mesurent entre 0,5 cm et 1,5 cm, et les soldates peuvent atteindre 2,5 cm.

Eciton is a New World army ant genus that contains the most familiar species of army ants. The most predominant and well-known species is Eciton burchellii, which is also more commonly known as "Balichana" in the Colombian Caribbean Coast, but also as the army ant and is considered the type species. Eciton burchellii and Eciton hamatum are the most visible and best studied of the New World army ants because they forage above ground and during the day, in enormous raiding swarms.

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