الخنافس .. بها نحو ٢٥٠,٠٠٠ نوع منتشرة في كل بقاع الأرض .. كتاب في سبيل موسوعة علمية

Beetles

It has about 250,000 species spread throughout the earth.

One of the beetles is the weevil, which is known to tamper with crops. One of the weevils is the cotton bollworm, and the United States loses about $203,000,000 from it each year.

I don't think anyone is Arab. Especially among the people of the cities, and especially among the people of the capitals, he is familiar with beetles, except for what he may have encountered in the garden, or on the grassy or dusty road, of a small black insect, walking on thin legs, aiming for a goal. He cast his gaze at her, then lifted it from her, out of lack of interest in her, and with a goal she was seeking.

Other than that, the countryside resident encounters sundries from them. In the countryside, life begins and neighborhoods expand their breadth. The types of insects may mix among the countryside resident, and he can hardly differentiate between them. It may be called a hashār that is not a hashār.

As for scientists, they have their own way of classifying living things, which they base on the structure of their bodies, their formation, and their characteristics. They do not find a new living thing until they go describe it in form, explain it physically, study its environment, life, and customs, and then place it in one of the categories of categories they have drawn.

According to scientists, beetles are insects.
According to scientists, insects also include cockroaches, moths, flies, ants, bees, wasps, and lice
Fleas, bugs, etc.

Spiders and scorpions are not among the gatherings, even though they are united by similar legs. Jointed legs.
Snakes and lizards are not among the creatures, as these have vertebrae
In the back, non-vertebrate insects.
If we say that a despicable human being is an insect, then we have gone beyond all scientific meanings of the insect to a linguistic simile. Whether what we said is true in that it is a simile or not.

What we want to draw attention to is that words in science have meanings that may differ from the linguistic concept, or what is common among people.
The one who speaks about science to scientists always adheres to these conventional meanings and established rules, except when he speaks to the public about science, in which case it is permissible for him to deviate from that to the extent that it is easy to understand and does not seriously disturb the science. This is what the great scholars of various nations did, and no one took them seriously.

- Installation of beetles and their apparent construction

We will take as an example one of the beetles, the widespread black beetle.
We have compared description with words to description with drawing, so it is
Explain.
Both descriptions are general descriptions that include the characteristics of most beetles, including some that are unusual.

And since half of the beetles is only half of the insects that are some of them, then if we come to the characteristics that distinguish the beetles and make them an order that stands alone among the rank of the class of insects, we will draw attention to that.

- Ahab the beetle

When the observer looks at a beetle, the first thing he notices is its appearance, or if you like, its outer shell, which is similar to human skin. He notices that it is something inanimate, and in fact it is made of a horny substance called chitin that covers the insects’ bodies. This (skin) has two purposes: The first purpose is to protect the insect’s body from harm, as it is a protective shield. The second goal: It does for the insect, and when we said of the insect, we also said of the beetle, what the skeleton does for animals that have these internal structures. It has an external skeleton, to which all the muscles are attached, and it is connected to what is inside the body.
Flaccid organs.

This external structure takes various shapes, and from it emerges the colors of the beetles that we see, from black and blue.
Green, yellow, and so on.

- The beetle has six legs

The beetle has only six legs, and this is one of the characteristics of the insect sect that distinguishes it from all other sects that have similar legs with joints, such as scorpions and spiders (eight feet), such as shrimp or crabs.

- The beetle has a head, thorax, and abdomen

The beetle, like all insects, has a head, thorax, and abdomen, and the head has two horns with which it senses. And he has two eyes that see. The head also has a mouth with strong jaws for biting and chewing, which varies depending on the need and the food.

From the bottom of the thorax emerge the insect's legs, and the thorax also holds the wings.

The abdomen is divided into ten rings, not all of which are visible. As for what appears to the vision, it is between 5 to 8 rings.
Each abdominal ring has two pairs of spiracles, which are the openings leading to the beetle's respiratory tube system.

- The beetle undergoes insect molt

Most insects undergo the phenomenon of metamorophosis, which is completed by the adult insect laying its eggs, then the egg hatches from the larva, which is a worm in which one form of the molting cycle is represented. Then the larva turns into another form of the molting cycle known as the nymph, in which it approaches... The insect emerges from its full adult form, then the nymph turns into an adult, which is the end of the cycle after which the adult insect returns and lays eggs to begin another cycle.

We mentioned that the abdomen is divided into ten rings, not all of which are visible. From our description of moulting, it becomes clear to us the origin of these rings, as they are from the worm, and the worm’s body is originally rings.