The robin is an incomplete metamorphosis insect, its life can be divided into three stages: egg, wakame and adult, in which its wakame is also called the robin monkey, the robin monkey will come out of the ground after completing four moults underground to become an adult. The temperature environment is different in different places, the emergence time of the monkey is also different, usually in the June-August period, June-July the highest rate of emergence, the best time to catch is after 7 o'clock in the evening, until the first half of the night is the emergence of the period, after the rain will be a little earlier.

Cicadas' eggs will stay in the soil for 2-5 years on average, and the hatched larvae also live in the soil, using stinging mouthparts to suck the sap of plant roots, which will affect the growth of trees and even lead to tree death; the larvae will start to feather into adults at the end of June, and the freshly-fledged cicadas are green in color, with the longest lifespan of about 60-70 days; the female adults will start to spawn in the second half of July, and the spawn will be the peak period in the first and middle of August.

Cicadas are pests, screaming loudly in the trees in the summer, will use the needle to prick the mouthparts to suck sap, larvae inhabiting the soil, sucking the sap of the tree roots, there is a great harm to the trees, robin hooded monkeys can be eaten and medicinal, the time of capture is in the early summer evening, the climate of each place is different from the infestation of different time is not the same.