The meanings and symbols of cicadas are as follows:

1. Cicadas only drink dew and tree sap, plus they come out of the silt and do not get dirty, which symbolizes the holiness, innocence, and purity.

2. Cicada, also known as robin, means knowing, symbolizing reading, progress in homework, high marks in exams, and working hard.

3, the cicada's song can be said to be the sound of the aftermath, so it has the meaning of a brilliant, worn on the chest to symbolize that you can step forward, a fly, overnight fame, career red hot.

4, cicadas are creatures of the cycle, continuous, symbolizing the progeny, endless.

Cicadas, whose alias is robin, had a high status in the minds of the ancients, and were always regarded as a symbol of purity, innocence and spirituality.

With the passage of time, people have given more meanings to the cicada. Such as a jade cicada in the waist, harmonic "waist wrapped (cicada) ten thousand kan", to a cicada lying on the leaves, named "golden branch ('ZhiDao' harmonic) jade leaves", there are people will be hanging in the chest of the jade cicada named Some people also named the jade cicada hanging on their chests as "One Sound" (taking the sound of the cicada's song).

Cicada habits:

Whenever the summer heat is high, the heat wave often carries the cicadas know -, know -, know -, know the sound of chirping. The male cicada song is by contracting the abdominal song muscle, vibration of the tympanic membrane, produce loud sound, singing is a kind of courtship behavior. Female cicadas can fly over dozens of meters away when they hear the sound of male cicadas, and go to meet each other. Male cicadas die quietly after completing their reproductive task. And the eggs with the bark off the tree or wind and rain, fall into the soil, the larvae development drilled deep into the soil to start the life history.

The cicada's life is basically spent underground, as little as three to five years, more than a dozen years, underground by sucking the sap of the roots of the tree to grow, after maturity, drilling out of the soil, climbing up the trunk of the tree, and finally the cicada molt, fly to the trees and begin to chirp.

Han jade cicada four pieces are introduced as follows:

1, white jade cicada, the device is 5.2 cm long, 2.6 cm wide, the head of the cicada carving is strong, the tail for the arc of the convergence of the dorsal spine line bulging, with the reduction of the ground method of faceted double eyes and two wings, the shape of the vessel The shape of the vessel is straight.

2, topaz cicada, length 4.7 cm, width 2.8 cm, grayish white color, translucent. The head of the cicada is slightly pointed, and the wings on both sides are outlined with curved lines, elegant and moderate.

3, green jade cicada, length 5.6 cm, width 2.6 cm, white spots. Cicada eyes oblique convex on both sides, the center of the figure of eight protruding, dorsal spine curvature flat, wings long and narrow, the abdomen visible line several, cut work is clean and sharp.

4, nephrite cicada, length 4.5 cm, width 2.2 cm, flat, colorful. Cicada head for the oblique cut shape, dorsal spine line bulging, tail for the arc of the gradual closure, with the Yin line outlines the eyes and body of the cicada, the use of the Han eight knife method is concise and fluent, clear at a glance.