Introduction to dragon lice, how to breed dragon lice?

This thing is produced in Putuo Mountain, Zhejiang Province, called live sea shells, also known as giving birth to children, and the network is called dragon lice, eyewash spiders.

Dragon lice is an insect of the genus Dragon Lice in the family Coleoptera, and is also known as diving beetle, taste dragon, and water turtle. Its body is elongate and streamlined, flattened and smooth, the dorsal and ventral surface of the body is arched, the head is retracted into the prothorax, the lower jaw is short, the spherical compound eyes are round, two pairs of smooth wings, and the hind feet are hairy. The lifespan can reach 3-5 years.

Dragon lice are distributed all over the world, most of them live in still water environments such as ponds, lakes, swamps, and a few inhabit the slow-flowing waters of streams and ravines. They are carnivorous or saprophagous insects that feed on the larvae of various insects, crustaceans, snails, tadpoles, and fry, among others, and are voracious. They have a keen sense of sight and smell and mate in early spring.

The oviposition action is slow, the oviposition period can last for 1-2 months, and each female only lays eggs once a year, and the number of eggs can reach 1000-1500.

Dragon lice are cold, sweet in taste, return to the bladder meridian, and have the effects of nourishing yin and tonifying the kidneys, shrinking urine, and invigorating blood and strengthening tendons. It can be used to treat enuresis in children, frequent urination in the elderly, facial brown spots and other symptoms. In addition, the meat of dragon lice is delicious, crispy and refreshing, with the characteristics of high protein and low fat, and contains a variety of amino acids, trace elements and vitamins and other nutrients.

Eating dragon lice often has a good effect on lowering cholesterol, preventing and treating high blood pressure, obesity, nephritis, etc.

1. Breeding environment.

Dragon lice. As an aquatic insect, it has strong adaptability, is more suitable for living in clear and pollution-free fresh water, likes a warm environment, but is very unsuitable for strong light, and is afraid of strong light. Most of the dragon lice used to be wild dragon lice, but now they are being cultivated in captivity on a large scale.

The environment for cultivating dragon lice is very simple, you can either release dragon lice in a large area of sleep such as a fish pond, or you can breed them in a few square meters of water tank. It takes about 8 months for dragon lice to go from eggs to adults, and dragon lice are not very strict about the water environment, such as dissolved oxygen water temperature and pH.

Wait. In addition, dragon lice can be said to be almost disease-free, and they eat a wide range of things, making them very easy to breed.

2. Breeding facilities.

Because dragon lice are aquatic insects, it is very sensitive to water pollution such as pesticides and fertilizers, so it is generally better to establish breeding ponds in the suburbs. It is important not to build ponds near heavily polluted areas, especially factories, restaurants, etc. Breeding facilities are mainly determined according to the breeding area.

If the number of breeding is large, small ponds can be built, and small areas can be built ponds or tanks. The area of the water tank is about 10 square meters, and the water depth should not exceed 1 meter. Generally, 250 dragon lice can be stocked in one square meter.

Some aquatic plants can be planted by the pool.

Aquatic plants can also be planted in the pond.

3. Breeding management.

It is very easy to feed dragon lice, which are basically not picky eaters, but they are generally farmed with corn flour.

Rice bran and sweet fruits are the main ones. You can also break the snails and feed them, and they should be fed once a day at about six o'clock. It should be noted that it cannot be fed every other day to prevent fights between dragon lice due to lack of food, and it is not possible to feed toxic and spoiled food to dragon lice, otherwise it will cause dragon lice to die or not reproduce.

Dragon lice do not have great requirements for water quality, and generally use tap water or groundwater for water change, as long as it is non-toxic and non-bacterial, and is not polluted. When the water is too dirty, you should also pay attention to changing the water in time.

4. Harvest and preserve.

The breeding cycle of dragon lice will not be 8 months, and the fishing work is carried out in the pit pond ditch with a net in August every year, and the peak period of the adult is generally in the evening, so we can use purple light in the evening.

Adults are trapped. This not only saves labor and time, but also has good results. Then the collected adults can be scalded to death, dried and ready for sale, if it is to be ** fresh adults, then they should be covered with a net during transportation and storage to prevent them from escaping.

Dragon lice are larger, with a body length of 35 to 40 mm. Oval in shape, roughly shaped like a bull's eye. The whole body is black, the elytra are yellow, and the black part flashes green.

The compound eyes are located at the back of the head, immediately against the anterior edge of the chest. The anterior and middle limbs are small. The hind limbs are well developed, the sides are flattened like oars, and they are hairy, suitable for swimming.

The female is blunt, and the anterior tarsal segment of the male is sucker-shaped. Dragon lice larvae are cylindrical, with large heads, sharp mouthparts, yellow-brown bodies, and pupate in the mud at the water's edge when they are old and mature, and gradually degenerate into adults. <

1. Morphological characteristics: dragon lice are large in size, with a body length of 35 to 40 mm. Oval in shape, roughly shaped like a bull's eye.

The whole body is black, the elytra are yellow, and the black part flashes green. The compound eyes are located at the back of the head, immediately against the anterior edge of the chest. The anterior and middle limbs are small.

The hind limbs are well developed, the sides are flattened like oars, and they are hairy, suitable for swimming. The female is blunt, and the anterior tarsal segment of the male is sucker-shaped. Dragon lice larvae are cylindrical, with large heads, sharp mouthparts, yellow-brown bodies, and pupate in the mud at the water's edge when they are old and mature, and gradually degenerate into adults.

2. Characteristics of living habits: dragon lice can swim and fly, live in ponds, swamps, ditches and other freshwater waters with many aquatic plants, and have low requirements for water quality. 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. 1 2 years to complete the first generation, the generations overlap, 7 September all have adults.

3. Reproductive characteristics: dragon lice is dioecious, when it reaches the stage of sexual maturity and development, the male dragon chases the female dragon lice, and uses the round sucker (holding the foot) of the base of the tarsal segment of its forefoot to adsorb both sides of the smooth elytra of the female dragon lice, and climbs to the back of the female dragon lice body for mating (female dragon lice have no sucker on the forefoot). Female dragon lice lay fertilized eggs in the stem tissues of aquatic plants, and hatch small larvae at the temperature of the water.

The structure of the dragon lice is: dragon (monolithic structure) lice (semi-enclosed structure).

The structure of the dragon lice is: dragon (monolithic structure) lice (semi-enclosed structure). Pinyin is: lóngshī. The phonetic pronunciation is:

What is the specific explanation of dragon lice, we will introduce it to you through the following aspects:

1. Explanation of terms [click here to view the details of the plan].

See also: dragon lice, dragon lice.

2. Citations and Explanations.

Also known as "Dragon". Insect name. The adult body is oval, flattened, black or brown, and the larvae are elongated.

He lives in the water and flies at night. Guangdong and Fujian are often caught as food. Quote Ming Tu Ben "Fujian Zhonghai Wrong Sparse Jiebu":

Dragon lice, like and small, black, two wings and six legs, the autumn moon storm, flying from the sea, falling into the paddy field or pond, the seaside people fish, oil and salt treasure. Ming Chen Maoren's "Quannan Magazine": "Dragon lice, like insects on cow dung, like black and thin, split food, small flavor.

Xu Ke's "Qing Barnyard Banknotes, Diet, Cantonese People's Eating Birds, Beasts and Insects": "The food of eastern Guangdong is quite different from that of other provinces, such as dogs, voles, dragons, and grasses. Lu Xun's "Book of Two Places: To Xu Guangping Qiqi":

Dragon lice live in the water, with the outer carapace and the inner soft wings, like a beetle insect, and can also fly slightly. A small boat rowed by one person. Quoted in "Flower City", No. 2, 1981:

Shunde is a thirteen-person dragon, five dragons, three chickens (three people rowed), and even a branch to the dragon lice (a person picks up a bucket), which is completely combined with production, to adapt to the Shunde River network area, the characteristics of the geographical environment of the small river and the small spring. ”

3. Chinese dictionary.

The name of the animal. Insecta: Coleoptera, dragon lice. It inhabits ponds and marshes, with an oval shape and a body length of about 2 to 6 cm. Insects, small fish and tadpoles in the water are the staple food. Dragon lice have a long life history and it takes about two to five years to complete a generation.

Fourth, the network explained.

Dragon lice dragon lice: dragon lice dragon lice: traditional Chinese medicine.

Idioms about dragon lice.

The flea lice in the mouth and the dragon and tiger list run the trick to ask the lice and talk about the louse.

Words about dragon lice.

A dragon to run a trick pharmacy dragon lice are not itchy, but talk about lice, lice in the mouth, flea lice through Yang, lice through Yang, lice through Yang.

Sentence formation about dragon lice.

1. Male dragon lice use these suckers to firmly attach to the female when mating.

2. Dragon lice can swim in water, roll out of water and fly, and have strong phototaxis.

3. There are silkworms, grasshoppers and dragon lice in the street stalls in Thailand.

4. Water beetle, also known as "dragon lice", is often fried with garlic and ginger as a side dish.

5. The nutritional value of the conventional components of dragon lice and the protein of dragon lice was studied.

The explanation of the word dragon lice is: See: dragon lice, dragon lice.

The explanation of the word dragon lice is: See: dragon lice, dragon lice. The structures are: dragon (monolithic structure) lice (semi-enclosed structure). Pinyin is: lóngshī. The phonetic pronunciation is:

What is the specific explanation of dragon lice, we will introduce you to the source of pants through the following aspects:

1. Citations and explanations [click here to view the details of the plan].

Also known as "Dragon". The insect name is Hu Roll. The adult body is oval, flattened, black or brown, and the larvae are elongated.

He lives in the water and flies at night. Guangdong and Fujian are often caught as food. Quote Ming Tu Ben "Fujian Zhonghai Wrong Sparse Jiebu":

Dragon lice, like and small, black, two wings and six legs, the autumn moon storm, flying from the sea, falling into the paddy field or pond, the seaside people fish, oil and salt treasure. Ming Chen Maoren's "Quannan Magazine": "Dragon lice, like insects on cow dung, like black and thin, split food, small flavor.

Xu Ke's "Qing Barnyard Banknotes, Diet, Cantonese People's Eating Birds, Beasts and Insects": "The food of eastern Guangdong is quite different from that of other provinces, such as dogs, voles, dragons, and grasses. Lu Xun's "Book of Two Places: To Xu Guangping Qiqi":

Dragon lice live in the water, with the outer carapace and the inner soft wings, like a beetle insect, and can also fly slightly. A small boat rowed by one person. Quoted in "Flower City", No. 2, 1981:

Shunde is a thirteen-person dragon, a five-person dragon, three chickens (three people), and even a dragon lice (one person picks up a bucket), which is completely combined with production, adapting to the characteristics of the geographical environment of Shunde River network area and small river Xiaoyong. ”

2. Chinese dictionary.

The name of the animal. Insecta: Coleoptera, dragon lice. It inhabits ponds and marshes, and its body is oval-shaped, about 2 to 6 cm long, and its body color is black-brown and shiny. Insects, small fish and tadpoles in the water are the staple food. Dragon lice have a long life history and it takes about two to five years to complete a generation.

3. Network Explanation.

Dragon lice dragon lice: dragon lice dragon lice: traditional Chinese medicine.

Idioms about dragon lice.

In the mouth, fleas and lice talk about running and wearing Yang Guan, lice, dragon and tiger lists, and lice.

Word splitting talk about dragon lice.

Wear Yang Guan lice and wear Yang lice are not itchy, run the dragon trick and talk about the flea lice in the mouth, and the lice are in the louse, and the louse is in the one-stop pharmacy.

Sentence formation about dragon lice.

1. Water beetle, also known as "dragon lice", is often fried with garlic and ginger as a side dish.

2. The conventional components of dragon lice and the nutritional value of dragon lice protein were studied.

3. Male dragon lice should use these suction cups to firmly attach to the female when mating.

4. Male dragon lice use these suckers to firmly attach to females when mating.

5. There are silkworms, grasshoppers and dragon lice in the street stalls in Thailand.

Dragon lice habits: carnivorous, ferocious and gluttonous. It is said to be ferocious because it not only eats small fish, shrimp, insects and tadpoles, but also fish and frogs that are several times larger than themselves will attack and prey, and it is not surprising to eat more than 10 tadpoles in a day and night.

Both adults and larvae live in still water or running water, and a few are found in brine or hot springs. In China, it is mainly produced in Guangdong, Guangxi, Hainan, Fujian, Hunan, Hubei and other provinces and regions. Dragon lice are widely distributed throughout the world, from Greenland in the north to South Georgia in the south.

How do dragon lice reproduce and produce offspring? When it reaches sexual maturity, the male dragon lice chase the female dragon lice, and use the round sucker (holding the foot) at the base of the tarsal segment of its forefoot to adsorb the smooth front sides of the female dragon lice, and crawl to the back of the female dragon lice body for mating. From this point of view, dragon lice are still dioecious (female dragon lice have no suckers on their forefeet).

Female dragon lice lay fertilized eggs on aquatic plants, and hatch small larvae at the temperature of the water. The small larvae do not have an air storage sac, and only rely on the trachea in the body to store very little air, so the incubation time in the water should not be too long, and they should often swim to the surface of the water, and the trachea at the end of the abdomen will be exposed to the water surface to expel the exhaust gas and inhale fresh air. Dragon lice larvae feed on small fish, tadpoles, and other animals, but it does not have a distinct mouth, and the upper jaw does not have the function of chewing food.

The roof of its jaw is hollow, with a small hole at the base that secretes digestive substances and is attached to the mouth and esophagus, and a small hole near the tip that sucks liquid food. When it catches prey, it first spits out a poisonous liquid from the esophagus, through the hollow palate, into the prey to anesthetize it, and at the same time spits out a liquid with a strong digestive function, dilutes the content of the prey, and then sucks the digested material. Therefore, the feeding and digestion of dragon lice larvae is called parenteral digestion.

Human underwater operations or deep-sea expeditions are generally done by divers. Divers need to carry oxygen and a set of equipment to sustain a relatively long period of underwater work. There are also many skilled divers among insects, and dragon lice are one of the outstanding ones, which can dive to the bottom of ponds for long periods of time.

Even in winter, it can lurk under very thick ice for a long time and will not suffocate due to lack of oxygen. After the cold winter, the ice melts, and it ends its underwater wintering life and begins to swim freely in the water. Its ancestors originally lived on land, but later evolved into aquatic due to changes in the earth's crust, so it still retains the characteristics of its ancestors who breathed air.

There is an air reservoir under the elytra of the dragon lice, which has the function of "physical gills", and it also plays a positioning role when the dragon lice swim up and down the water. When the dragon lice stop at the surface of the water, the forewings gently shake to expel the exhaust gases containing carbon dioxide from the body, and then use the contraction pressure of the air sacs to absorb fresh air from the air. The amount of oxygen in the air is many times higher than in water, so aquatic insects have learned various ways to absorb air over a long period of evolution.

Dragon lice rely on stored fresh air to dive into the water to live. When the oxygen in the air bag is used up, it swims out of the water and re-exhausts the exhaust gas, inhaling fresh air.