Coleoptera, Scarabaeidae

Scarabs in Taiwan Province province, commonly known as scarabs with long arms and antlers in Taiwan Province province, are small and medium-sized beetles with a body length of 2.3~3.7 cm and a yellow velvet wing sheath. The horns of males vary greatly from individual to individual, while females have no horns. Adults appear from April to July, and the number is small. In low mountain areas, fruits are easy to find when they are ripe. Endemic to Taiwan Province Province, it is distributed in the low-altitude mountainous areas of the province.

Tiger beetle

Coleoptera, jumping spider family

Tiger beetle octopus octopus, commonly known as octopus, is a small beetle with a body length of about 1.3~ 1.7 cm. Its larvae and adults have jaws, and it preys on aphids and other pests. As the name implies, its temperament is fierce, and adults mainly appear in May-September.

ant

Hymenoptera, Formicidae

Ants are the most familiar common insects, and there are many kinds. Its excellent sense of smell often brings a lot of trouble to the home environment. Ants are social insects. There are queens, males and workers in the whole nest, each doing his own job. Ants eat all kinds of food, and they play an important role in the ecology of the animal kingdom.

Chinese aliases for spiders: Networm, Flat Pearl, Round Pearl.

Living habits

Spiders feed on insects, other spiders and multi-legged animals. Jumping spiders have good eyesight and can dive close to their prey within 5 or 10 meters and pounce. Crab spiders wait for prey on flowers close to their body color. The ground spiders who make holes in the soil build a cave lined with silk, which has a living cover that opens at night to prey on insects that pass through the hole. Funnel spiders weave a flat web, which will cause vibration when catching insects; Spiders themselves live in silk tubes with narrow ends leading to plants or cracks. Most circular spiders weave the largest web with the least silk, just like air filters, trapping insects that can't see the filaments and have weak flying ability. Although the net is complicated, it can be woven in 1 hour, usually before dawn. If the net is destroyed in the process of predation, weave a new net. Why the spider itself will not be stuck by the web, and how to cut off the extremely elastic silk when weaving the web, these problems have not been fully understood so far. When weaving a round net, spiders let out traces and soup floats with the wind. If the free end of the spider silk doesn't stick to anything, the spider will pull it back and eat it. If the silk sticks firmly to something (such as a branch), the spider will cross the silk bridge and reinforce it with silk. The spider took a thread in the middle of the bridge, fell on a thread and hung down, sticking to the ground or another branch. The spider returned to the center, and Radogan radiated from the center of the web. Then, the spider crawled back to the center of the net and pulled temporary spiral wires from the inside out, with a large spacing between the spiral wires. Then the spider climbs to the outermost periphery and places a sticky and dense insect-catching spiral wire from the outside to the center of the web. While knotting, eat the dry spiral silk knotted before, which is not sticky. After the web is finished, some spiders tear off a silk (signal silk) from the center of the web and climb into the leaves in the corner of the web to hide. If an insect casts a net, it can hear the news and eat through the vibration of the signal line. Some spiders stay head down in the middle of the web, waiting for their prey. When there is prey, they first wrap it in silk, then take a bite and take it back to the center of the net or a hidden place to eat or store it. Butterfly moths are large and easy to escape, so they are bitten first and then tied with silk thread. Some spiders * * * use cobwebs. For example, the social funnel spider (Agelena conso ciata) in Gabon will make a big web, and hundreds of spiders will hunt together. Spiders may play an important role in controlling the number of some insects. The neurotoxicity of several poisonous spiders is toxic to people. The process of weaving webs has aroused the interest of the scientific community and has been used to study drugs that affect the nervous system (after using drugs, spiders weave different webs).

According to the way of life and predation, it can be roughly divided into web spiders and wandering spiders.

The main feature of a web-forming spider is its web-forming behavior. Spiders secrete mucus through the protrusions at the top of their silk sacs, which can condense into very thin silk when exposed to air. The web made of silk is very sticky, which is the main predation means of spiders. For insects that stick to the web, spiders will first inject their prey with a special liquid jujube digestive enzyme. This digestive enzyme can make insects coma, twitch and even die, and liquefy their bodies. After liquefaction, spiders feed by sucking. Spiders are oviparous, and most male spiders will be swallowed up by female spiders after mating with them and become food for female spiders.

Wandering spiders don't weave webs, but wander around or pretend to hunt prey on the spot, such as tall-legged spiders, commonly known as "worms" in Taiwan Province Province.

Some spiders can make balloons out of nets and float to other places with the wind.

Spiders are not food on the human table. They don't even dare to stay away. Lu Xun said: "The first person to eat crabs is admirable. Who dares to eat if he is not a warrior? " Some people eat crabs, and some people must have eaten spiders. But if it is not delicious, future generations will not eat it "("The Second Feeling of Spring "). But recently, some areas, such as Sukhumi in Cambodia, have sold spiders as their dishes.

Spiders mainly prey on small insects. The tarantula beside the water can prey on small fish and shrimp, the bird spider can catch birds (it is said, but there is no exact literature record), and a 7.5 cm long spider in South America can even prey on small rattlesnakes. Web spiders prey on their webs.

(a) the corpse solution:

When spiders hunt, they first paralyze their prey with venom from fangs, secrete digestive juice and inject it into their prey to dissolve it, then suck it slowly and eat it completely.

(2) homemade fresh-keeping bag:

Spiders are afraid of light and often make webs where there is light and wind. Spider silk can be used not only to trap prey, but also as a fresh-keeping bag. The spider wrapped the leftover food in a net for the next time.

(3) Cleanliness:

Spiders clearly divide the places where they eat, sleep and pull things. Domestic spiders generally use cages as garbage stations, urinate in them and throw food scraps.

(4) Very subtle appetite:

Spiders have a strong sense of territory and should be kept separately. They only eat one or two meals a month and can fast for two months at most. The food is mainly insects, such as crickets and Cao Meng. As long as you put a wet sponge in the cage to replenish water, you can raise it to adulthood (about seven years) without changing the cage.

Not all spiders are poisonous (among them, arachnids are not poisonous)! And the toxicity is different. Usually, the toxicity of pet spiders in the market is relatively weak, and they will not take the initiative to attack people as long as they are not intentionally teased. Even if you are bitten, there is no danger to your life. Strong adaptability, no need for careful care. Spiders are the easiest pets to keep.

Spider silk is expected to be used to make high-strength materials, and experts from the Institute of Gene Biology of the Russian Academy of Sciences are actively studying the use of spider silk to make high-strength materials. There is a cluster of spinnerets behind the spider's abdomen, which passes through the silk glands in the body. Protein mucus secreted by this gland can condense into extremely strong spider silk in the air. According to the Moscow Communist Youth League newspaper, experts from the Institute of Gene Biology of the Russian Academy of Sciences found that the hardness of this material is 9 times higher than that of steel with the same thickness, and the elasticity is 2 times higher than that of other most elastic synthetic materials. Experts believe that after further processing, the above spider silk materials can be used to manufacture light body armor, parachutes, protective materials for weapons and equipment, wheel tires, plastic surgery appliances and high-strength fishing nets.