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(suborder Apocrita, family Formicidae)

Subfamily of ants which have a single, flattened scale on the petiole, often overhung by the first gastral segment. Venom is extruded through a ventral, transverse slit at the tip of the gaster. There are about 500 species, with a world-wide distribution.

Subjects: Zoology and Animal Sciences.

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