Silk moth is a large white insect .The different stages in the life cycle of silk moth are- Egg- it is the first stage of the life cycle .The female moth lays its eggs during the summer.The egg hatches in spring. Larva- the eggs hatch into larvae or caterpillars, which feed on tender mulberry leaves. This stage last for 27 days. Pupa- the caterpillar spins fine silk filament around it in layers to form a cocoon. The silkworm takes 3 to 7 days to prepare the cocoon. Silk moth- The pupa changes into a moth which comes out of the cocoon. The female adults lay egg and the cycle continues.