Chinese name: emergence mbth: emergence meaning: the process of insects changing from larvae to adults. Occurrence range: winged insect generation: pupa introduction, process, 1. Before emergence, 2. During emergence, 3. After eclosion, the adults bear fruit, 1. Androgyny, 2. Polymorphism, an introduction to adults. In the early stage of eclosion, we should stretch our wings and appendages by adjusting and raising high blood pressure; At the same time, the epidermis gradually hardens and has the ability to fly. Adults emerge in the cocoon, some bite the cocoon with the upper jaw, some rely on the emergence hole or secrete liquid to dissolve the cocoon, thus breaking the cocoon and emerging. In the process of eclosion, many behavioral procedures are controlled by hormone regulation. The eclosion process is 1. Before eclosion, the nymph or larva of non-abnormal insects should be found as a suitable place, and the chest and feet should be attached to the object to stop moving, so as to prepare for eclosion. 2. During eclosion, the head of the adult first protrudes from the chest of the nymph or larva and gradually exposes the whole body. When the completely deformed insect approaches eclosion, the color of the pupa becomes darker, and the adult keeps twisting in the pupa, resulting in the pupa shell breaking. 3. After eclosion, adults have grown up and all kinds of organs are fully developed. Some species are sexually mature after eclosion and can mate and lay eggs soon after eclosion. Some species need to continue feeding for a while and supplement nutrition to reach maturity. The adult results after eclosion are 1. Androgyny refers to the phenomenon that the male and female individuals of the same insect have obvious differences in external morphology such as size, body shape and body color except reproductive organs. The hermaphroditism of insects is quite common, which is common in Odonata, Hemiptera, Coleoptera, Diptera, Lepidoptera and Hymenoptera. For example, in the rhinopteridae of Coleoptera, males have hornlike protrusions on the head and thoracic backboard, while females have no corresponding protrusions; The maxilla of male in Spadiidae family is particularly developed, but the maxilla of female is smaller. 2. Polymorphism refers to the phenomenon that individuals of the same sex of the same insect have different types of differentiation, which is most prominent among social insects such as bees, ants and termites.