What is a nymph in the context of insect development?

A nymph represents a specific stage in the developmental process of certain insects, particularly those that undergo gradual metamorphosis, also known as incomplete metamorphosis. In this type of development, the young insects hatch from eggs and resemble smaller versions of the adult, lacking fully developed wings and reproductive organs. As they mature, nymphs go through a series of molts, becoming larger and more adult-like with each stage until they finally reach adulthood.

This definition is consistent with how insects such as grasshoppers, crickets, and certain types of cockroaches develop. They go through nymphal stages rather than a distinct larval stage as seen in insects that undergo complete metamorphosis, such as butterflies and beetles. Thus, understanding the role of nymphs is critical in recognizing how certain groups of insects develop and adapt through their life cycles.