What does dragonfly mean?

Dragonfly's "evasion" and "feeling" are similar in pronunciation, indicating that they love each other. Couples can give jade dragonflies to each other, which means a hundred years of harmony and all the best.

2. Slim and graceful

The appearance of the little dragonfly standing on the branch moved many literati and elegant guests, so they created "the eyes of spring are silent and pity the trickle, and the shade of the tree loves sunny and soft." Xiao-he only shows sharp corners, and there is a famous sentence like "Dragonfly stands at the top". The appearance of small dragonflies conforms to the feminine and lithe image of women, so the emerald dragonflies also symbolize the beauty of women.

Extended data:

Many dragonflies are brightly colored and are a large category of ornamental insects; Dragonfly adults often prey on agricultural pests, such as moths, and the larvae of mosquitoes are also aquatic insects. Dragonflies can prey on the larvae and adults of healthy mosquitoes in their infancy and adulthood respectively. Aedes aegypti is the main vector of dengue fever.

At present, the effective way to prevent dengue fever is to reduce the number of Aedes aegypti around human beings. Dragonflies are the natural enemies of Aedes aegypti, and they have a strong ability to prey on Aedes aegypti. Controlling the number of Aedes aegypti by controlling dragonflies is an efficient and feasible method to prevent the spread of dengue virus.

Dragonfly, as a common insect, its larvae are aquatic and rich in mercury and cadmium. With the increase of heavy metal content in water, the content of heavy metals in the body also increases, so it is often used as an indicator of heavy metal pollution in water.

Some kinds of larvae and pupae in dragonflies have high nutritional value. By comparing the protein content of human dragonflies with pork, milk and egg proteins, they can be eaten. In some areas, markets and restaurants can often see many kinds of edible dragonflies.