Where did the dragonfly go in winter?

Dragonflies are the general name of dragonflies and dragonflies, belonging to incomplete metamorphosis insects. Young insects live in the water, breathe with rectal trachea gills in the water, prey with a very developed face cover, usually molt more than 11 times, take 2 or more years to climb out of the water along the aquatic plants, and then finally molt into adults. Let's take a look at where the dragonflies go in winter.

Where did the dragonfly go in winter?

Dragonflies have basically completed their entire life cycle before winter, but their eggs are placed in plants, in dead wood or even in dry soil, or dropped on the surface of the water, depending on the species. The eggs of most species of dragonflies in temperate regions do not hatch after birth and may take several months to hatch. This period of non-hatching is called "diapause". The purpose is to allow dragonflies to spend the cold winter in egg form.

What is the purpose of scratching the surface?

The female dragonfly is laying eggs. Dragonflies usually lay their eggs on aquatic plants in small rivers and ponds. The larvae hatched on aquatic plants after ovulation are called "water flies". Water flies have to crawl in the water for a long time, at least one year, or seven or eight years before they can become adults of dragonflies. After feathering into an adult, the short and fat belly becomes more and more slender, and the previously folded wings spread out one by one, and finally become a dragonfly like a small airplane. It can be seen that "dragonfly scratching the surface" is a natural part of dragonfly life-laying eggs to reproduce.

Is dragonfly a beneficial insect or a pest?

The dragonfly is an incomplete metamorphosis insect. The juvenile "Shuizhi" lives in the water, breathes through the rectal trachea Gill and preys with a very developed face cover. It usually takes more than 11 times to molt, and it takes 2 or more years to climb out of the water along the aquatic plant, and then molt and feather into an adult. Young worms can prey on wigglers or other small animals in the water, and sometimes the same kind also eat each other. Both adults and larvae are carnivorous and eat more pests. Adults can not only prey on mosquitoes and flies, but also prey on butterflies, moths, bees and other pests.