For many people it would be interesting to know those kinds of cockroaches that are operating in their kitchens. They study their habits, peculiarities of reproduction. And this curiosity has only one reason: the desire to find out all about pests, in order to find the most effective way to get rid of them.
But there are enthusiasts who specially plant cockroaches in their homes. Someone seriously takes a great interest in cockroach runs , another feeds these insects with pets, and the third of cockroaches considers favorite pets.
In the huge variety Podopryada Cockroaches, each terrariumist can find the kind of individuals he likes. Indeed, today more than 4,500 species of cockroaches are known to scientists. And this is not the limit, as entomologists continue to discover new species.
Cockroaches on the territory of the former USSR
In Russia and the countries of the Near Abroad there are slightly more than fifty species of cockroaches. In his home, a person with the greatest probability can see only some representatives of this group of insects. Surely, someone learns on the below photos of the inhabitants of their homes.
Red cockroach, or Blattella germanica:
One angrily calls him a cockroach, and the other quite peacefully cries "stasik". This kind of house cockroaches in apartments has got accustomed thoroughly. The apartments are created just ideal conditions for its prosperity. It's warm all year round, and there's always something to spare. This is what attracts them.
Black cockroach , by science - Blatta orientalis:
This kind of cockroaches live in cellars, garbage cans, sewage. They are a real disaster for residents of apartments. As a rule, the residents of the lower floors suffer most from them. Large insects are terrifying. But there was a time when people believed that these not very pleasant creatures brought prosperity to the house.
Shelfordella tartara is a Central Asian cockroach:
This species of cockroaches lives in the south of Russia. He has a yellow head and a darker, brown or almost black abdomen. A distinctive feature of this species is the jumping of cockroaches and the ability to make small flights .
Cockroaches are great travelers. The habit of living next to a person forces them to travel with him along the world. Therefore, there is nothing surprising when in Ukrainian or Russian buildings suddenly find refuge and safely breed species of cockroaches, more familiar, for example, for America or Turkey.
Exotic home cockroaches
People used to think of cockroaches as pests. But what unusual kinds of cockroaches happen! There are specialists who are ready to appreciate the beauty and grace of individuals from this unit.
In the modern world it is fashionable to start exotic pets. Whom now you will surprise with occurrence in the arranged apartments of snakes, iguanas or poisonous spiders? In domestic terrariums, some types of cockroaches look exquisite, cause genuine interest in a certain group of the population and have long been no surprise.
Lucihormetica subcincta, the photo of which is given below - comes from South America, the dream of a true lover of insects:
They invented for him a gentle nickname - "avtomobilchik." The creature looks original. A bright strip goes around the entire black cockarrel calf, short light elytra, and the males have bright yellow spots on the pronotum. The insect is very much like a tiny car with burning lights.
Therea Bernhardti, or Chess cockroach:
This handsome man is considered the nicest of representatives of the cockroach army. Contrasting black and white coloring is somewhat reminiscent of the predatory ground beetle, which shoots its offenders with a liquid with a sharp smell. This similarity serves the cockroach as a kind of protection. In his homeland, in India, he has enemies, that is why in the daytime the insect hides under the stones, the roots of trees, and at night searches for food.
And another cockroach, Blaberus craniifer, has a rather strange appearance and has an intriguing name - "Dead Head": "
The image on the pronotum of an insect is somewhat like a mask that is put on Halloween.
Cockroaches - record holders
There are among the cockroaches their record holders. The largest is the Madagascar hissing cockroach, or Gromphadorrhina portentosa. This kind of cockroaches are rightly called gigantic, which is clearly demonstrated by photography:
Yellow-brown individuals, able to grow up to 10 cm, amaze not only by impressive sizes, but also by their unexpected habits. Cockroaches of this variety are capable of making a menacing hiss. In fact, there is nothing unusual in this sound. This is a kind of powerful exhalation.
At the moment of danger, the abdomen of the insect contracts, sharply squeezing the air through the respiratory openings. On potential enemies, as well as on less fortunate rivals in mating games, this expression of masculinity works effectively. Defending the right to the female and the territory, the cockroaches organize real battles, as a result of which someone may well be without a paw or without a mustache.
The most severe kind of cockroaches is presented in the photo below:
This is an Australian burrowing rhinoceros cockroach, Macropanesthia rhinoceros. In size, he can succumb to his African relative, but in the mass he has no equal. Some specimens weighed 37 grams. This value is comparable to the average sparrow. The insect, as the name implies, is able to break through the earth in tunnels up to a meter in length. This cockroach belongs to another record. Rhinoceroses are long-lived among insects, they live up to 10 years.
And the American cockroach (Periplaneta americana) has no equal in speed:
Scientists believed that in just one second this sprinter can overcome a distance 50 times the length of his body. Of course, the achievement is not made for the sake of sporting success, but because of the insanity's greatest cowardice, only legs can save it from enemies.
Representatives of different kinds of cockroaches have wings, however, almost no one can use them. Weak attempts to fly or, rather, to plan, are extremely rare, in exceptional cases.
But in Latin America there is a cockroach Megaloblatta longipennis, which has full large wings:
Individuals of this species can rightfully be called the only flying cockroaches. When an insect unfolds its wings, it becomes truly huge, reaching 20 cm in width.
Evolution of the cockroach
The fact that the ancestors of the order Tarakan-like ancient dinosaurs, hundreds of times written and said. The appearance of modern cockroaches has undergone minor changes since the Carboniferous period, the way of life has also remained the same.
Evolution touched the reproductive system of insects. In the distant past, cockroaches had an ovipositor that allowed them to lay eggs inside the substrate and leave them there almost to the mercy of fate. This entailed the death of most of the offspring.
Later there was an edema, a protective capsule for eggs. And some varieties of cockroaches that exist in the third millennium drag the ootec with themselves, parting with it just before the larvae exit, and some even have live births. Caring for the young generation allowed cockroaches to keep their appearance more efficiently.
From time to time there are new kinds of cockroaches that have not been seen before in the field of view of entomologists. Insects evolve, adapt to new environmental conditions, to poisons. Who knows what the cockroaches of the future will look like ...