1. Hormones regulate many insect functions, including ecdysis and metamorphosis.

2. The 2nd ecdysis larvae appeared eyestalk, the 4th pereiopod was recognized as a faint swelling and the1st, 2nd pereiopod had 6,6 pairs of natatory setae on the exopod respectively.

3. The process of toads ecdysis was reported, and the significance of environmental protection and the commercialization of bufonic was discussed.

4. The reason of snake's ecdysis is its skin too tightens and it feels uncomfortably.

5. Hormones regulate many insect functions, including ecdysis and metamorphosis. Pheromones are chemicals emitted by one individual that alter the behavior of another member of the same species.

6. In the period of nymph stage and ecdysis peak, the control effects was better but it need highly professional technique and not suitable for guiding farmer to control the midges .

7. Accumulating evidence suggests that EH is present in all insects and may provide a general hormonal mechanism to regulate ecdysis.