CATDOLL : CATDOLL: Complete picture of spider species

Complete picture of spider species

There are bird spiders, Chinese wolf spiders, Nephila clavata spiders, white-fronted crab spiders, grooved scleroderma spiders, etc.

1. Tarantula

The whole body is brown and the individuals are very large, generally about 7 cm long, and some can reach 10 cm long. They have the ability to build their own nests and live in burrows around dry fields or in overgrown weeds.

It lurks in caves during the day and goes out to hunt at night. It has a strong reproductive capacity and produces a lot of venom. Each female spider lays 300 to 500 eggs a year. Every 200 bird spiders can produce 1 gram of venom at a time. It is produced in Guangxi, Yunnan, Vietnam, Myanmar and other countries in my country.

2. Chinese wolf spider

The whole body is densely covered with black, white and yellow fine hairs, the head, chest and back are brown, with a yellow-brown longitudinal spot in the center. It is wide in front and narrow in the back, with a distinct pit in the middle, and the body length is 3 to 4 cm.

It is a burrowing spider that digs holes and builds nests in cotton, wheat, soybean and other crop fields in plain areas. It is produced in Shaanxi, Shandong, Henan and other provinces.

3. Nephila clavata

The spider is 3 to 5 cm long, with a dark-brown dorsal surface of the head and thorax, black chelicerae, yellow pedipalps, a short yellow stick-shaped spot in the central front half, and a yellow checkered spot in the back half. It is often found in orchards, farm crops such as rice and corn, and in forests.

The spider is most common in forest areas. It often weaves a complex triple golden web on plants or tree branches. It is a web-weaving spider that is good at preying on various flying insects. Each female spider breeds 800 to 900 spiderlings per year. Every 400 to 500 spiders can produce 1 gram of venom. This spider is found in various areas in southern my country.

4. White-fronted Giant Crab Spider

The spider has a short, flat body, and its legs can stretch out to the left and right to walk sideways. It is large in size and is one of the most common indoor spiders. It is good at walking and easy to escape. It lays eggs from May to June, and each female spider can produce 500 to 600 spiderlings. 600 spiders produce 1 gram of venom at a time. The spider is produced in Henan, Shaanxi, Sichuan, Jiangxi, Guangxi, Hunan, Hubei and other provinces and regions.

5. Grooved Scleroderma

The spider body is 3 to 4 cm long. The female spider is yellow-brown in color, with the head, thorax and back arranged in a forked shape, and the chelicerae are long columnar. The thorax is gray-black with 8 small gray-white round spots around it. This spider is a burrowing type, and its nest is tubular with radial spider silk around the hole.

Each female spider breeds 800 to 900 spiderlings per year, and every 800 to 1,000 spiders can produce 1 gram of venom. This spider is mainly distributed in Shaanxi, Shandong, Sichuan, Jiangxi, Guizhou, Yunnan and other provinces.

poisonous

Nephila clavata

Chinese name:

Scientific name: Nephilaclavata L. Koch, 1878

Phylum: Arthropoda

Class: Arachnida

Order: Arachnida

Family: Theridiidae

Genus: Astilbe

For more information, please see Baidu Encyclopedia

Golden Silk Spider

Latin name: Nephila; silkspider

Phylum: Arthropoda

Class: Arachnida

Order: Arachnida

Family: Theridiidae

Genus: Astilbe

For more information, please see Baidu Encyclopedia

I have seen it in the mountainous areas of Guangdong. It is poisonous. After being bitten, the wound will be burning and painful, and it will be red and swollen.

The species introduction and pictures of spiders are as follows:

1. The first type will crawl around and hunt.

2. The second type is to weave a net and then wait for the prey to come to them.

3. Most of the spiders that can be kept as pets are the third type of cave spiders. They hide in sand piles or caves in their daily lives, and then weave webs outside the caves. The webs themselves are not sticky and are purely used to sense the size of prey and catch them.

Types and pictures of spiders

Classification of spiders

There are many types of spiders, with more than 40,000 species in nature. These spiders can be roughly divided into three types: hunting spiders, web-building spiders, and cave spiders. The first type will go around looking for food, while the second type will build a web and wait for prey. Most of the spiders that people keep as pets are the third type: cave spiders. They like to hide in sand piles or caves and build webs at the entrance of the cave. The web itself is not sticky and is purely used to sense the size of prey and catch it.

Habits of spiders

(1) Corpse Transformation Method:

When hunting, spiders first use their fangs to paralyze their prey, secrete saliva to dissolve the prey, and then slowly suck it up, eating it completely without leaving any part behind.

(ii) Homemade fresh-keeping bags:

Spiders are afraid of light and often weave webs in places with light and ventilation. In addition to being used to catch prey, spider silk can also be used as a fresh-keeping bag. Spiders use their webs to wrap up leftover food and save it for next time.

(III) Mysophobia:

Spiders have clearly separated the places for eating, sleeping and defecating. Domestic spiders usually use the side of the cage as a garbage station, where they urinate, defecate and throw food scraps.

(IV) Very good appetite:

Spiders have a strong sense of territory and should be kept alone. They only eat one or two meals a month and can go without food for up to two months. Their food mainly consists of insects such as crickets and grasshoppers. Just put a wet sponge in the cage to replenish its water, and you can keep it until it reaches adulthood (about seven years) without changing the cage.

Common Pet Spider Species

Red Rose

Originally from the forests of South America, it is covered in fur and loves to hide in mud holes. It mainly feeds on insects. Red Rose has strong adaptability. When it grows up, it is about 7.5 to 10 cm long. It is currently the most popular pet spider. The price is not very high. Have you ever thought about keeping a hairy spider as a pet? If you are very busy at work and don't have much time to stay at home, but you want to keep a pet, then the cool hairy spider is your best choice. It is usually very quiet, not noisy, and you don't need to take time to play with it; it has strong adaptability and only needs to eat once or twice a week, and you don't need to provide food and clean up feces every day; it will not cause noise and environmental pollution, nor will it damage your furniture.

You must have many questions: Is it poisonous? Will it bite? How to choose it? How to keep it? Does it make a web? What does it eat? How long can it live?

Brief introduction:

As far as we know, there are about 40,000 species of spiders in the world. According to their habits, they are usually divided into web-building spiders, hunting spiders and cave spiders. Web-building spiders are the most common, but they are not suitable as pets due to space and food problems. Cave spiders are usually kept as pets.

All spiders are poisonous! It's just that the toxicity varies. Usually, pet hair spiders on the market are less toxic and will not attack people unless they are deliberately teased. Even if they are bitten, their lives will not be in danger. They have strong adaptability and do not require careful care. Spiders are the easiest pets to keep.

Spider silk could be used to make high-strength materials

picture:

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Spiders are a general term for arthropods, arachnids, and spiders. There are more than 35,000 species, distributed all over the world, and more than 2,000 species have been discovered in China. The appearance features eight legs, a round or oblong body, divided into the cephalothorax and abdomen, connected by a thin abdominal stalk in the middle. Spiders have tentacles, and the tentacles of male spiders have a spermatophore.

Spiders mostly live under eaves or in vegetation. The protrusions at the tip of their anus can secrete mucus, which condenses into very fine silk when it comes into contact with air. Spiders feed on insects, and they often weave a gossip-shaped web in corners that are not easily destroyed, treetops, bushes, and places where insects often appear. For example, the golden garden spider is large in size, and its web is extremely sticky, and even lighter birds will be stuck in its web. Usually, although the spider is not on the web, there is always a thin thread on the web that connects to the spider's resting place. As long as the insect touches the web, the spider will get the information. For insects stuck on the web, the spider will first bite them. This bite injects a special liquid digestive enzyme into the insect. This digestive enzyme can make the insect comatose, convulse, and even die, and liquefy the body, turning it into a "can of liquid high-protein canned food."

There are many species of spiders, and their natures vary greatly, but most of them are "evil wives devouring husbands". When female spiders reach sexual maturity, they emit a special smell. Male spiders, attracted by this smell, will quickly go to the web made by the female spider to "woo". The female spider bites the male spider who is courting on the web, and the male spider becomes a delicious meal in the mouth of the female spider, just like the insects that hit the web.

In Sydney, Australia, there is a black spider called the Sydney spider. It is found only in Sydney and its suburbs. It is one of the most dangerous creatures ever discovered to humans. The venom secreted by it is no different from that of the redback spider and the king spider.

The venom secreted by the Sydney spider can kill humans, but it is almost ineffective against small animals such as mice and some insects. Once a person is bitten by it, he will die within half an hour; but some insects and mice are safe and sound after being bitten. Why is this? It remains a mystery.

There are various kinds of spiders living all over the world. There is a kind of hairy spider in the Amazon River Basin in South America. The scary thing about it is that it can conspire with plants to eat people. The branches and leaves of the sun wheel flower have a strong entanglement. Once a person touches the sun wheel flower, he will be entangled tightly. At this time, groups of hairy spiders will swarm up and slowly eat the person. On the contrary, there is a hunter spider in Australia. It specializes in eating mosquitoes and has superb mosquito catching skills. It is affectionately called the "dreamland guard".

In the United States, there is a spider that can sing. By rubbing its upper and lower jaws together, it can make a wonderful sound, just like singing. A department store owner named Haswell in London specially raised two poisonous spiders to guard the door of the store. The poison is very strong. If stung by it, the mildest is severe pain for the whole day and it will not heal for a long time; the worst is death. With these two spiders guarding the door, the store is extremely safe.

There is a bird-eating spider in Guyana. It is 9 cm long and weighs more than 60 grams. Its eight legs are more than 25 cm wide when spread out. It has very hard hair on its body and eight eyes. The web it makes is very strong and can withstand a weight of more than 30 grams. Once a bird is stuck in the web, it cannot escape. There is a spider in Papua New Guinea that can weave fish nets. The silk it spits out is very strong and not afraid of water. Local residents let the spider spit the silk on rattan baskets, which can be removed and used as fish nets to catch fish. It is very durable.

There is a spider called "Staurivi" in Guatemala. It is as big as a pigeon egg. Dozens of them often gather together and spit out a colorful spider silk that is thicker and brighter than silk. The web is square with a Bagua pattern in the middle. It looks very beautiful in red and green. Local residents like to hang this spider web on the window as a curtain. There is also a spider that cannot make a web, but it will roll the silk it spits into many balls and hang them on its chelicerae. Whenever a small insect flies over, it will throw the silk ball out. It really hits the target every time, right?

At present, according to scientists' research and experiments, a rope made of spider silk is stronger than stainless steel bars of the same thickness. It can bear five times more weight than steel bars without breaking. Although some spider silk is as thin as hair, you should not underestimate its ability and function! Spider silk is very elastic. A spider silk with a diameter of only one ten-thousandth of a millimeter can be stretched more than twice before breaking. Therefore, we can say that spider silk is one of the toughest things in the world.

Because spider silk has excellent properties, spiders can be used to control pests. Moreover, spiders' web-making behavior is unique among predatory animals and belongs to a relatively special group. Scientists are studying and developing this field to make it play a role in people's lives. Do you want to know more about spiders? Then why not come to the Beijing Natural History Museum and visit our animal exhibition hall, you will learn more!

Reference material:%E8%9C%98%E8%9B%9BReady-made copy.

There are many types of spiders, with more than 40,000 species in nature. These spiders can be roughly divided into three types: hunting spiders, web-building spiders, and cave spiders. The first type will go around looking for food, while the second type will build a web and wait for prey. Most of the spiders that people keep as pets are the third type: cave spiders. They like to hide in sand piles or caves and build webs at the entrance of the cave. The web itself is not sticky and is purely used to sense the size of prey and catch it.

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The species introduction and pictures of spiders are as follows:

1. The first type will crawl around and hunt.

2. The second type is to weave a net and then wait for the prey to come to them.

3. Most of the spiders that can be kept as pets are the third type of cave spiders. They hide in sand piles or caves in their daily lives, and then weave webs outside the caves. The webs themselves are not sticky and are purely used to sense the size of prey and catch them.