Larva (noun)

1. The early stage of an insect's development, between the egg and the pupa stage.
2. An early form of an animal that is different from its adult form.

Origin:

The word 'larva' comes from the latin word 'larva' meaning 'mask, ghost, evil spirit.'.

Examples:

1. The butterfly larva hatched from its cocoon.
2. The moth larva munched on the leaves of the tree.
3. The beetle larva lived in the soil and ate roots.
4. The caterpillar larva crawled along the branch.
5. The mosquito larva lived in stagnant water.