Northern region dragon lice

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The natural predator of dragon lice is rats. Dragon lice, commonly known as water turtle, also known as Zelao, black shell insect, water turtle, water turtle insect, urine shooting turtle, small turtle, etc. Insecta, Coleoptera, carnivorous suborder, dragon lice family aquatic insects, there are more than 4,000 kinds of aquatic insects in the world, the feeding habits are very miscellaneous dragon lice can swim and fly, live in ponds, swamps, ditches and other freshwater waters with many aquatic plants, and the requirements for water quality are not strict.

When the larvae are mature, they burrow into the drier soil at the water's edge, turn into naked pupa, and emerge after half a month. Adults have strong phototaxis, and when they swim to the surface of the water and see a light, they fly high into the air and tend to the light source.

Summary. Pro, Hello, what does the dragon lice grow pro small to large shape, oval body, flat and smooth, shiny. Antennae filamentous, 11-segmented, born on the edge of the compound eye near the upper collar.

The head is broad, and it fits closely with the anterior chest. The hindwings are well developed. The hind foot is specialized as a swimming foot, and the basal ganglia are well developed and the left and right are connected.

The forefoot of the male is the holding foot. 8 segments are visible on the dorsal plate of the abdomen, and 6 segments are visible on the ventral plate. Adults and larvae are aquatic, carnivorous, mostly feed on aquatic insects, large-scale species can harm fish fry, some species become a big pest in freshwater aquaculture, 1 larva 1 day and night can be harmful to more than 10 fish fry.

Some types can be used as medicinal herbs and food. Common species such as Cybister japonicus sharp.

Pro, Hello, what does the dragon lice grow pro small to large shape, oval body, flat and smooth, shiny. Antennae filamentous, 11-segmented, born on the edge of the compound eye near the upper collar. The head is broad, and it fits closely with the anterior chest.

Hind wings are well developed. The hind foot is specialized as a swimming foot, and the basal ganglia are well developed and the left and right are connected. The forefoot of the male is the holding foot.

8 segments are visible on the dorsal plate of the abdomen, and 6 segments are visible on the ventral plate. Adults and larvae are aquatic, carnivorous, mostly aquatic insects as feed, coarse locust large species can harm old stool-type fry, some species become a big pest in freshwater aquaculture, 1 larva 1 day and night can be harmful to more than 10 fish fry. Some types can be used as medicinal herbs and food.

Common species such as Cybister japonicus sharp.

Dragon lice is a precious aquatic insect newly edible, also known as water turtle, which is a general name for all large and small species of the dragon lice family, and belongs to the insect class Coleoptera carnivorous suborder dragon lice family.

Living in fields, ditches, streams and other water bodies, it can swim in the water, fly out of the water, and has strong phototaxis. It is mainly carnivorous, but also eats plants, and is especially good at catching small fish, shrimp and aquatic insects in the water. Dragon lice is a new edible precious aquatic insect, also known as water turtle, is a general term for all large and small species of the dragon lice family, belonging to the insect class Coleoptera carnivorous suborder dragon lice family.

It lives in fields, ditches, streams and other water bodies, can swim in the water, can fly out of the water, and has strong phototaxis. It is mainly carnivorous, but also plant-eating, and is especially good at catching small fish and shrimp in the water and insects that are dead in the water core skin. It is mainly produced in Guangdong, Guangxi, Hainan, Fujian, Hunan and Hubei provinces and regions in China.

Dragon lice can swim and fly, and live in freshwater waters such as ponds, swamps, and ditches with many aquatic plants, and have low requirements for water quality.

1. Dragon lice, also known as water turtle, is a general term for all large and small species of the dragon lice family, belonging to the insect class Coleoptera carnivorous suborder dragon lice family, is a precious aquatic insect emerging in recent years, living in fields, ditches, streams and other water bodies. It can swim in the water, fly out of the water, and has strong phototaxis. Adult dragon lice are oval in shape and about 3 cm long.

Dragon lice are of different sizes, streamlined, carnivorous, but also vegetative, and are especially good at catching small fish, shrimp and aquatic insects in the water for food. In China, it is mainly produced in Guangdong, Guangxi, Hainan, Fujian, Hunan, Hubei and other provinces and regions. At present, most of the dragon lice in the market rely on catching wild resources, due to water pollution and man-made overfishing, so the number is decreasing, so that the market is in short supply, resulting in the most expensive.

2. Although dragon lice are expensive, they are loved by people, and the reason is that in addition to the delicious "and taste" of fresh food, it also has high medicinal value. According to records, dragon lice have the effect of nourishing yin and nourishing the kidney, and have a good effect on the treatment of enuresis in children, frequent urination in the elderly, loss of kidney qi, and accumulation. Eating dragon lice often has a good effect on lowering cholesterol, preventing and treating high blood pressure, obesity, nephritis, etc.

In addition to fresh food, dragon lice can also be processed into powder, infusion (such as dragon lice wine), pills and other dietary therapeutic products, so the market is very good, quite promising for the development of breeding.

3. There are many species of dragon lice, and there are 160 species in China alone, among which the Japanese sucker dragon lice is the largest one. According to the trial breeding certificate, this kind of dragon lice that was originally wild can be artificially cultivated, and has been successfully cultivated in our province and other places. The dragon lice has a short breeding cycle (about 8 months from eggs to commercial adults), does not have high requirements for dissolved oxygen, water temperature, pH, etc., and it has few diseases, a wide range of food habits, and is easy to breed and manage; Dragon lice are small in size and occupy a small space in the water body, which is not only suitable for breeding in large water surfaces such as fish ponds, but also suitable for breeding in small water bodies such as cement ponds of several square meters or even smaller water tanks; The cost of feeding is low, you can collect the distribution of Fushou snails, snails, fresh dead fish and shrimp, slaughterhouse all kinds of animal scraps and so on directly into the pool feeding, usually occasionally corn flour, wheat bran and other energy feed mixed with water and then kneaded into a ball, after drying and feeding.

Therefore, all localities can actively study and develop aquaculture according to market needs.