第三节变态 Metamorphosis o Metamorphosis: The relatively abrupt change in body form between the end of immature development and the onset of the imaginal(adult) phase 胚后发育过程中,昆虫从幼期状态转变为成虫状态 现象。 5 patterns of developmentMetamorphosis l Metamorphosis: The relatively abrupt change in body form between the end of immature development and the onset of the imaginal (adult) phase. l 胚后发育过程中，昆虫从幼期状态转变为成虫状态的 现象。 – 5 patterns of development