Cicada is also called cicada. Its larval stage is called cicada monkey, reptile monkey, cicada monkey, cicada turtle or cicada turtle. It is a large insect in the family Cicadellidae of Homoptera, with a body length of 2-5 cm, two pairs of membranous wings, a well-developed compound eye on the head and 3 eyes. The antenna is bristle-shaped, with 6 to 7 nodes, the mouthparts are pricked and sucked, the beak is pointed and developed, two pairs of wing membranes are strong and easy to break, the front chest is large and wide, the middle chest is large, the upper part has tumor-like protrusions, the front legs are swollen and the lower part has teeth.

Cicadas live in trees, and larvae live in soil, mostly distributed in tropical areas, inhabiting deserts, grasslands and forests.

Cicada living in trees has a long needle-like mouth, which can be inserted into branches to absorb juice. Larvae living in the soil can survive by eating the tender roots of trees, and can also suck juice from the roots, which is harmful to trees. Cicada prolongs life by sucking juice. However, cicada shells can be used as medicine.

Cicada is a wonderful musician in nature. Since ancient times, people have been most interested in the singing of cicadas. Poets express their noble feelings by chanting cicadas, and some people keep cicadas in small and exquisite cages and put them in their rooms to listen to their voices.

Cicada tirelessly uses a light and comfortable tone at any time, and can sing one light cicada song after another for people without any musical instrument accompaniment, adding a deep affection to nature, so it is called "insect musician" and "singer of nature". The high note in the cicada family is a cicada called "double drummer". There are large ring-shaped vocal organs on both sides of its body, and a disk that can be opened and closed inside and outside is in the middle of its body. The opening and closing speed of the disc is very fast, which is the reason for shaking cicada. The sound lacks change, but it is much louder than the canary in the jungle.