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The larva is the stage right after the eggs are laid. In this stage, the larva is white and legless.

Red Wood Ant Larva

The larva is the stage right after the eggs are laid. In this stage, the larva is white and legless.

While the pupae are in the cocoon, they are incased in a shelter, often called an ant-house.

Red Wood Ant Shelter of Pupae, so-called ant-house

While the pupae are in the cocoon, they are incased in a shelter, often called an ant-house.