English: Maternal vibrating behavior and hatching process of Parastrachia japonensis. The video presents three phases of the hatching process. At the beginning of the vibration behavior, a mother suspends the unhatched egg mass coated by mucus excretion (during 0–20 s in video data). At 4 min later, embryos are hatching synchronously from an egg mass (during 21–40 s). Around 15 min later, newly hatched nymphs are walking on the empty eggshells to take up mucus secretion and trophic eggs (during 41–60 s). In all three phases, only one vibrating behavior of the mother is apparent.