CATDOLL : CATDOLL: How do wasps reproduce?

1. How do wasps reproduce?

I once observed a wasp breeding.

At first, a big wasp built a nest on my balcony. I observed it for a long time and confirmed that there was only one wasp. The nest was lotus-shaped, but there were only three or four nest holes. You can clearly see that the big wasp laid eggs in the nest. It took more than a week for the egg to grow into a larva, a pupa, and then a wasp. During this time, the big wasp has been diligently feeding the young bees and expanding the nest. When the three or four little wasps flew out, there were more than 20 young bees waiting to be fed in the nest. The little wasps will also help build nests and raise their younger brothers and sisters.

But I don't know if it's always the same bumblebee that lays the eggs.

I think there is a big difference between the colonies of wasps and bees.

But it seems that there are many types of wasps, and I don't know which one I am observing...

Found a picture reference on the Internet:

It seems not, wasps do not live in groups

Wasps lay their eggs in the nest and put the insects they catch in it after anaesthetizing them.

Pseudomeiosis occurs, haploids become male bees, diploids become worker bees or queen bees

How wasps reproduce:

After mating with a male bee, the queen bee (female) stores the sperm in her body for several years.

The queen bee can freely choose to lay fertilized or unfertilized eggs.

There are three sizes of beehives. The smallest is the worker bee cell (horizontal to the ground), the drone cell is 1 mm larger in diameter than the worker bee cell, and the queen cell is the largest and smallest. Usually, when the queen is being cultivated, the worker bees start making the queen cell at the bottom of the hive, facing downwards (vertical to the ground).

The queen bee lays unfertilized eggs in the drone cells, which develop into drones (parthenogenesis).

The queen bee lays fertilized eggs in the worker bee cells and queen bee cells, which develop into worker bees and queen bee.

All bee larvae are fed royal jelly for the first three days, and worker bee and drone larvae are fed honey and pollen after three days. Only the larvae in the queen bee cell are always fed royal jelly and fully develop into queen bees.

The sex of an organism is not necessarily determined by sex chromosomes. In bees and ants, sex is determined by the number of chromosomes (or the number of chromosome sets), not sex chromosomes. Bees and ants do not have sex chromosomes. Queen bees and worker bees are both female, and they develop from fertilized eggs. Each somatic cell contains 32 chromosomes, two chromosome sets, and are diploid. Drones are very few in number in a colony, and they develop from unfertilized eggs. Their somatic cells contain 16 chromosomes, one chromosome set, and are haploid.

2. What do wasps feed their young?

Simply put, when wasps lay eggs, the female wasp builds a mud chamber or chooses a suitable bamboo tube to lay eggs in it, and then stores the larvae of other insects or spiders that have been captured and anesthetized by stinging.

There is one egg in each chamber, and the openings are sealed separately. The larvae hatched from the eggs feed on the stored prey. After pupating and emerging as bees, they bite through the nest opening and fly out.

The scientific name of the wasp is "Vespa", also known as "hornet" or "hornet".

Large and long, toxic, hornets are insects that can sting, except bees and ants, in the suborder Apocrita (formerly known as Aculeata) of the order Hymenoptera. They are widely distributed, numerous, and fast-flying insects. They belong to the family Vespidae of the order Hymenoptera. Female wasps have a powerful long stinger on their bodies. When attacked or disturbed by unfriendly forces, they will attack in groups, which can cause allergic and toxic reactions in people, and in severe cases, death. Hornets usually build nests with softened wood pulp that is like paper pulp, and eat animal or plant food.

Wasps are completely metamorphosed animals, and they go through four stages in their life: egg, larva, pupa, and adult. The appearance of the body is different in each stage. After hatching from the egg, the larvae still have their tails attached to the bottom of the nest. Even if the nest is hung upside down, they will not fall. They are fed by worker bees. When they mature, their bodies gradually change from crystal clear to bright yellow. Then they seal the hole with a thin cocoon and turn into a pupa. When they emerge as adults, they break out of the cocoon. It only takes two to three weeks from egg to emergence. The larvae feed on other small insects, especially caterpillars.

The larvae of wasps live in a closed nest built by the adult wasps, feeding on other anesthetized insects stored by the parents. The larvae of other wasps are fed by the adult wasps in the nest with chewed insects of other kinds. After eating, the larvae often secrete a liquid that the adult wasps like to eat. At the end of the midgut of the larvae's digestive tract, a closed sac is formed by the peritrophic membrane, which is not connected to the excretory hole. The excrement is stored in this sac and is free in the body. After pupation, the sac becomes dry, hard and black, and is shed with the molting. The eggs are usually oval, white, and smooth, with one in each cell, and a wisp of stalk at the base that holds them until the larvae hatch. Therefore, although the hive entrance is downward, the larvae in the nest do not fall out of the nest.

Wasps are carnivores. In order to raise their offspring, they can kill hornets and use the hornet meat to feed the wasp larvae.

The lower part of the thigh is their favorite. Cabbage caterpillars Cabbage can almost be said to be the oldest of all our vegetables. We know that ancient people have started to eat it. In fact, before humans started to eat it, it has existed on the earth for a long, long time, so we really have no way of knowing...

3. How to raise wasp fish?

Farming technology

Wasp fish

1. Pond conditions

Choose a pond with sufficient water source, fresh water without pollution, and convenient drainage and irrigation, with an area of ​​3 to 10 mu. It is best not to choose an old pond with thick silt. Each pond is equipped with a 1.5 kW to 3.0 kW aerator. Use quicklime to dry the pond, expose it to the sun, clean it and disinfect it to kill harmful organisms and pathogens. Fill the pond with water about 1.5 meters.

2. Fish stocking

The pond mainly raises yellow bone fish, with about 3,000 to 4,500 fish weighing 20 grams to 50 grams per acre, and about 200 silver carp per acre (size 7 cm to 9 cm).

The stocking rate of yellow croaker in mixed culture in ponds is generally 300 to 500 per mu (size 4 cm to 5 cm). The stocking rate can be appropriately increased according to the stocking situation of other fish and the level of breeding technology.

3. Feed production

Since the yellow catfish is an omnivorous and carnivorous fish, when feeding artificial compound feed, if conditions permit, it should also be supplemented with animal feed such as fish meat and animal viscera to supplement the yellow catfish's need for animal protein. The protein content of artificial compound feed is required to be no less than 38% to 40%, and the formula is: 4% fish meal, 10% imported meat and bone meal, 5% blood meal, 20% soybean meal, 20% wheat bran, and 5% premix.

4. Daily management

Patrol the pond three times in the morning, noon and evening, carefully observe the fish's activities, feeding and growth, and deal with problems in time; frequently inject new water to prevent water quality deterioration, and also prevent fish from getting sick and floating. It is best to inject 20 cm to 30 cm of new water every 10 days, and turn on the aerator on rainy days. Apply quicklime once every half a month, and the amount used each time is 15 kg to 25 kg per mu.

5. Fish disease prevention and control

Yellow bone fish has strong disease resistance and few diseases, but poor breeding and management can also cause diseases and cause losses. After the fry are released into the pond, the fish pond should be sprayed with drugs for disinfection, and antibiotics and Chinese herbal medicines should be added to the processed feed regularly to prevent fish diseases.