Latin Name: Atta sexdens. Trivialname: Leafcutterant. Taxonomy: Subfamily: Myrmicinae Tribe: Attini. Keeping Level: (3) through their large Space- and. Atta sexdens, along with A. cephalotes, is the most widespread member of its genus. Its northern most range is Mexico, and extends through Central America. Atta sexdens: leafcutter ant: cubic feet), a colony of A. sexdens leafcutters may turn over kg ( pounds) of soil in tropical moist forests, stimulating.

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The second-largest caste, their heads average 2. Non-queen females cannot breed. Body dull, densely finely punctate, forehead wrinkled in the middle of something.

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Species: Atta sexdens – AntWeb

Both figures are re-examined must. Despite being surrounded by food, they are sexdene of feeding themselves. Occipital zaehne short and pointed. Depending on the size of the predator, smaller or larger ants will be dispatched to fend off the attack. The waste chambers are larger than the human head and located at the rim of the colony.

Wilson and Holldobler, ; Wilson, After finding a suitable spot to build her nest and colony, the queen burrows into the ground and creates her first chamber, where she lays sexdns first set of eggs and places the fragment of the fungus garden that she took from her old colony.

After the first 2 years, the colony grows in leaps and bounds, and sexually active queens sexedns males appear. The four castes of A.

Atta sexdens

At first, the colony grows slowly, but after two to three years, the growth becomes faster. In insects, “incomplete metamorphosis” is when young animals are similar to adults and change gradually into the adult form, and “complete metamorphosis” is when there is a profound change between larval and adult forms.


Atta attq naturally expand their colonies to large amounts of land and resources in all directions and dimensions if given enough room to sexdenns.

Tibie III, 4, 6 mm. After gaining enough sperm to found a new colony, the queen will fly away from her old colony, up to approximately 11 km, shed her wings, burrow into the ground, and begin egg-laying. Mandibles, clypeus and scape shiny. They live in a symbiotic relationship with a fungus belonging to the subphylum Basidiomycota. Wilson and Holldobler, The caste of the resulting worker is determined by the conditions, which are in turn regulated by adult workers. The ants cut fresh leaves up into small pieces to use as a substrate for their fungus crop flower petels are often used for the same purpose.

Sex is determined by the type of egg is laid. Smaller workers sometimes ride on the leaf pieces while the foragers carry them. This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico.

When the queen goes on her mating flight, called the revoada, she needs to obtain enough sperm to last her entire lifespan.

In addition to the queen, the colony contains four castes of sterile female workers: Precipitation is typically not limiting, but may be somewhat seasonal. Occipital zaehne short side vertex with weak swelling or TuberkeI.

Vibration and Animal Communicaton: Pubescence on sparse, abundant pronotum. The mean of sexdens workers are distinguished from robusta, and opaciceps laevigata little. Sex is determined by the type of egg laid. The larvae, after an additional weeks, spin cocoons around themselves and pupate.


If the ground is already marked, the ant will not mark it again unless the scent has faded. ADW doesn’t cover attz species in the world, nor does it include all the latest scientific information about organisms we describe.

In addition to cultivating the fungus, Atta ants feed on plant sap. Front corners poorly marked. Foragers find leaves by using chemical trails left by scouts to go to a particular tree, strip it of its leaves, and then follow the same trail back to the nest to deposit the leaves.

See How to Cite AntWeb. We encourage use of AntWeb images. United States Fish and Wildlife Service.

Breeding season End of October to Middle of December The eggs, larvae, and pupae of Atta sexdens are generally cared for by gardener-nurse caste workers, with some help from the within-nest specialists if the larvae or pupae are extremely large. Members of different colonies are not spared if they happen to wander into a colony that isn’t their own.

Second, Within-nest specialists do a wide range of tasks: Atta sexdens Linnaeus[1]. The colonies contain up to chambers with a combined volume of more than 20 m 3.