兵蚁是在蚁类社会中的特殊职蚁。头大，上颚发达、巨大，可以粉碎坚硬食物，在保卫群体或攻击其他种的蚁类时即成为战斗的武器。因其可以担负战斗任务，故称为兵蚁。也有缺少兵蚁的种类。同样的兵蚁在白蚁社会里也能见到。
n. maxim
misc. soldier ant ; dinergate
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新住所里的空间被工蚁检查完毕之后，兵蚁被邀请了进来。
The space was then examined by working ants and after that a soldier was invited.
它们几乎所有都是低级工蚁，各种各样的工蚁品种，兵蚁是相当罕见的。
They're almost all minor workers. There are a variety of intermediate workers - the soldiers are rather rare.
食物供应不足，兵蚁便会组成一个由多达五千万个体组成的流动群体。
When food supplies are low, these ants will swarm in sizes of up to 50 million single ants.
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