Incomplete metamorphosis

Incomplete metamorphosis is an insect life cycle in which juveniles resemble smaller adults and develop through successive molts without a pupal stage.

Hemimetabolous development: An insect developmental pattern in which juveniles mature through molts without a pupal stage. This broader developmental pattern includes the life cycle described here.
Insect: An arthropod with a three-part body, six legs, and usually one or two pairs of wings. Incomplete metamorphosis is a developmental pattern found among insects.
Complete metamorphosis: An insect life cycle with distinct egg, larval, pupal, and adult stages. Its larva and pupa contrast with the adult-like juveniles and direct transition here.
Grasshopper: A jumping insect in the suborder Caelifera, typically with enlarged hind legs. Grasshoppers hatch as wingless nymphs and develop through molts into adults.
Nymph (biology): An immature stage of an insect that resembles the adult but is not yet sexually mature. Nymphs are the juvenile forms that grow through successive molts.
Instar: A developmental stage between two successive molts in an arthropod. Each nymphal interval between molts is an instar.
Holometabolism: Insect development through larval and pupal stages before the adult emerges. This developmental mode includes a pupa, the stage absent in incomplete metamorphosis.
Cockroach: An insect in the order Blattodea, with a flattened body and long antennae. Cockroach nymphs resemble adults and gain adult features over successive molts.
Ecdysis: The shedding of an animal's outer cuticle or exoskeleton to permit growth. Each juvenile molt requires shedding the rigid exoskeleton.
Exoskeleton: A rigid external structure that supports and protects an animal's body. Because the exoskeleton cannot expand continuously, growth requires molting.

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