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Allomerus decemarticulatus
''Allomerus decemarticulatus'' is an Amazonian ant species found in the tropics of South America. The species was documented by Alain Dejean et al. (2001) in French Guiana, a small French territory on the coast of northeast South America just north of Brazil. This species is most notable for the workers’ complex and extreme predatory behavior, which involves a symbiosis with both a plant and fungal species.
They live in leaf pockets of a host plant species, ''Hirtella physophora''. These leaf pockets are areas inside of the plant between the leaves and the stem. Each colony, which consists of about 1,200 workers, inhabits a single tree; however, the ants are spread among the leaf pockets, with typically 40 workers per pocket. Their diet primarily consists of large insects that are captured on the plant, but they also eat some kinds of food bodies produced by the plant as well as its nectar. They are able to capture their prey, which is much larger than themselves, by constructing a platform that acts as a trap for the unsuspecting prey. The ants hide in the trap and attack when any insect lands on it. This technique is an example of ambush predation.〔
== Physical characteristics ==
The worker is about 2 mm long, with a head width and length at about .6 mm. The queen is approximately double that size, with a head width of 1.05 mm, head length of .98 mm, and a total length of 5.53 mm. The workers have 10-segmented antennae, from where they get their name. They also have abundant hair, with long hairs on their head (greater than .13 mm) and shorter hairs on their abdomen (less than .07 mm). They have brownish yellow colored bodies and whitish hair.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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