ATTA SEXDENS PDF

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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See How to Cite AntWeb. Gaster width of 5, 4 mm. Atta sexdens and Sexdeens cephalotes are the principal insect pests where they are found, destroying billions of dollars worth of crops with their ability to quickly defoliate sexfens strip crops of anything useful to the ants. Protruding hair quite short, in the middle of the forehead, occiput and sides of the head scattered, abundant on the thorax, and gaster Sielchen.

The smallest of the four castes, gardener-nurses have an average head width of 1.

Create Account Forgot Password? All waste in the nest, including infrabuccal pellets, spent substrate from the gardens, and dead ants are carried in the waste chambers to avoid contamination.

Among other attines, A. United States Fish and Wildlife Service. Fertilized eggs produce females.

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Stipes slender and pointed, as long as the associate volume, apical membrane with a narrow hairy. Usually when Atta ants cross human paths, the ants are not looked upon favorably. Ants in general progress through four stages of development: Pubescence on sparse, abundant pronotum.

The largest amount of food results in virgin queens, while slightly less food creates soldiers. After the number of workers reaches 5—8 million, the colony stops expanding and diverts resources into producing queens and males. Among the males falls on the strong variation of Sagitta, the upper edge in profile bulges sometimes deep, sometimes even d Borgm. After suitable amounts of these workers have been born, the queen produces forager-excavators and within-nest specialists.

Rather than building upward, A. Journey to the Ants. Eye keels curved inward above, below with a short tooth, also with short ventral tooth.

Found most commonly in these microhabitats: After there are enough gardener-nurses to take care of both brood and fungus, the queen becomes strictly an egg-laying machine for the rest of her life.

Instead of going by age and producing large workers and soldiers, the queen reverted to producing small and mid-size workers as if she were in command of a younger colony.

Retrieved from ” https: Three to four weeks after being laid, the egg hatches and a larva emerges. The gardener-nurses also cut pieces of mycelium for the other castes to eat. More specifically refers to a group of organisms in which sexfens act as specialized subunits a continuous, modular society – as in clonal organisms. Usually, the garden is fertilized only with feces, but sometimes it is necessary for the queen to forage a small quantity of plant material.

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These insects include flies of the family Phoridae which lay their eggs on foragers. Despite being surrounded by food, they sexdsns incapable of feeding themselves. Linnaeus[1].

Atta sexdens

Hill, ; Howse, et al. The division of labour also depends on the age of the worker. The larvae, after an additional weeks, spin cocoons around themselves and pupate. Synapomorphy of the Bilateria. The term only applies when the distinct groups can be found in the same area; graded or clinal variation throughout the range of a species e. The four attz of A.

Atta sexdens – Wikipedia

Another sexden feature is a relatively large, two-lobed head. From late October to mid-December, the A. Vertex with very short lateral tooth. Leaves and other soft plant material brought into the nest by the foragers is chewed into a pulp and fertilized with faeces.