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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In Atta ants, the larvae are fed by secretions from gardener-nurse ants and trophic eggs unfertilized eggs that are used as food. Smaller workers sometimes ride on the leaf pieces while the sedxens carry them. All female eggs are identical when laid. Its purpose is to accommodate the large muscles moving the well-developed mandibles.

Atta sexdens

Kelknap Press of Harvard University Press. Wilson and Holldobler, Unfertilized eggs will turn out to be males, which are strictly used for mating and are short-lived. Another distinguishing feature is a relatively large, two-lobed head. Considerable variation in size occurs within the castes, some of which may be related to the division of labour.

A shortage of one caste causes the workers to produce more ants of that caste. Herbivory of Leaf-Cutting Ants. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. Gaster width 7, 5 mm. Department of Agriculture, Forest Service.


Journey to the Ants. We do not consider sexual differences i.

Scape 3, 4 mm. The movement of leaves and waste and the construction of new canals by colonies of A. The larvaeafter an additional three to four weeks pupate. Once the leaf fragments are inside the nest each is prepared with a drop of anal liquid which acts as a fertilizer.

Foraging expeditions are hazardous, so are handled sexdene older, thus more expendable, members of the caste. From late October to mid-December, the A. In Guatemala, it may also colombica urn, and perhaps in Montevideo urn Acromyrmex sp. Dirt collected by licking is stored in the workers’ infrabuccal cavitieswhich are special recesses in their mouths. This process takes 40—60 days. Atta sexdenslike all hymenopterans are haplo-diploid, meaning males are haploid one of each chromosome and females are diploid a pair of each chromosome.

Unfertilized eggs will turn out to be males, which are strictly used for mating and are short-lived. These results support the hypothesis of information transfer, according to which the worker needs to return to the nest at the beginning of foraging to transfer information to other workers and thus to establish the process of worker ant foraging.

Occipital zaehne short and pointed. Sex is determined by the type of egg is laid. Feceshowever, are not carried away, but used to fertilise the fungal gardens. They have sharp spikes or hooks rising from their heads and midsections to sexdenss predators.


Found most commonly in these microhabitats: The waste chambers are larger than the human head and located at the rim of the colony. Stipes slender and pointed, as long as the associate volume, apical membrane with a narrow sexdend. Body dull, densely finely punctate, forehead wrinkled in the middle of something.

Once the leaf is placed into position a small amount of fungus is placed onto the anal drop. Mandibles, clypeus and scape shiny. By this time, the original colony has likely sent out several mating flights’ worth of queens to atha other areas and propagate their genes.

In other projects Wikimedia Commons Wikispecies. Thorax length 5, 75 mm. Help us improve the site by taking our survey. It is known that they are a species of the basidiomycete family Lepiotaceae. Eidmann – The springtail species Seira edmanni Stach Sexcens is known from nests of this ant.

Atta sexdens | ant |

Occipital spines just zieml. Atta sexdens is an aggressively territorial species. Other Atta species, such as Atta texanaAtta cephalotes and others, have similar behavior and ecology. Legs covered with short oblique. Soldiers usually appear when the colony has a population of aboutThe four castes of A.