Workers can prevent the emergence of a queen by sealing with wax the cuts made by her in the queen cell wall  or by pressing their head against cap of the cell . This behaviour is called queen confinement or queen imprisonment. The confinement occurs during swarming when there is congestion in the nest . It prevents queen fighting and allows afterswarms to be produced. During confinement the queen is fed by workers through slits in the tip of the cell . There is no nepotism during feeding of the confined queens .
When queen cells are attended by workers emergence of queens can be delayed for more than two days by tooting sound  but see . Duration of queen confinement is not affected by vibration signal .
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