Symbolism in The Metamorphosis. The Insect. There are many different theories on what the insect represents in The Metamorphosis. Some believe that it may. Description and explanation of the major themes of The Metamorphosis. This accessible literary criticism is perfect for anyone faced with The Metamorphosis. Title & Symbolism in Metamorphosis Uniform The Uniform is a symbol of the ability of capitalist society to consume an individual.