What does the term 'nymph' refer to in the context of insect development?

The term 'nymph' specifically refers to a stage in the life cycle of insects that undergo incomplete metamorphosis, which includes developmental stages that are distinct but do not involve a pupal stage. During this stage, the insect resembles a smaller version of the adult but usually lacks wings and may have different physical characteristics. This contrasts with complete metamorphosis, where the insect undergoes significant changes, transforming from a larva to a pupa before becoming an adult.

Nymphs continue to grow and undergo several molts, gradually developing into their adult form. This phase is crucial for species that exhibit this kind of development as it allows for a series of changes and adaptations before reaching maturity. Recognizing nymphs is essential for understanding their behavior, ecology, and the strategies needed for pest management in agricultural contexts.