Name of the cricket family. What does a cricket look like - photo and description of insect species
The millions of species of insects that live on earth today play a vital role in our planet's ecosystem. Although most of them are safe, some can cause a lot of trouble for a person, and some can be poisonous and even deadly. From common ants and flies to more exotic beetles, here is a list of the 25 most dangerous insects in the world.
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1. Termites
Termites do not pose a direct danger to humans; they play important role For environment Moreover, in some cultures they are even eaten. But at the same time, baby termites can cause enormous damage to infrastructure, sometimes making houses completely uninhabitable.
3. Black-legged tick
Each year, the black-legged tick infects thousands of people with Lyme disease, which begins with a rash around the bite that resembles a bull's eye. Early symptoms of this disease include headache and fever. WITH further development illness the victim begins to suffer from problems with cardiovascular system. Few die from these bites, but the effects can last for years after unpleasant meeting with a tick.
4. Nomadic ants
The first creature on our list that is dangerous in the literal sense of the word is stray ants, known for their predatory aggression. Unlike other ant species, roving ants do not build their own permanent anthills. Instead, they create colonies that migrate from one place to another. These predators constantly move throughout the day, hunting insects and small vertebrates. In fact, the entire combined colony can kill more than half a million insects and small animals in one day.
Most wasps pose little direct danger, but certain varieties, such as the German wasp North America, reach large sizes and can be incredibly aggressive. If they sense danger or notice an invasion of their territory, they can sting repeatedly and very painfully. They will mark their aggressors and in some cases chase them.
6. Black Widow
Although the sting of a female black widow spider can be very dangerous to humans due to the neurotoxins released during the bite, if necessary treatment is provided in time medical care, then the consequences of the bite will be limited to only some pain. Unfortunately, isolated cases of death from a black widow bite still occurred.
7. Hairy Caterpillar Coquette Moth
Megalopyge opercularis moth caterpillars look cute and furry, but don't be fooled by their cartoonish appearance: they are extremely poisonous.
Usually people believe that it is the hairs themselves that sting, but in reality the poison is released through the spines hidden in this “fur”. The spines are extremely brittle and remain in the skin after touching. The poison causes a burning sensation around the affected area, headache, dizziness, vomiting, sharp abdominal pain, damage to the lymph nodes and sometimes respiratory arrest.
8. Cockroaches
The cockroach is known as a carrier of many diseases dangerous to humans. Main danger life together with cockroaches is that they get into toilets, garbage cans and other places where bacteria accumulate, and as a result, they are their carriers. Cockroaches can cause many diseases: from worms and dysentery to tuberculosis and typhoid. Cockroaches can carry fungi single-celled organisms, bacteria and viruses. And so fun fact- they can live for many months without food or water.
10. Bed bugs
A person does not directly feel the bite itself, since the bedbug’s saliva contains an anesthetic substance. If the bug is unable to get to the blood capillary the first time, it can bite a person several times. Severe itching begins at the site of the bug bite, and a blister may also appear. Occasionally, people experience a severe allergic reaction to a bug bite. Fortunately, 70 percent of people experience little to no effects from them.
Bedbugs are household insects and do not belong to the group of carriers of infectious diseases, however, in their bodies they can retain pathogens that transmit infections through the blood for a long time, for example, viral hepatitis B; pathogens of plague, tularemia, and Q-fever can also persist. They cause the greatest harm to people with their bites, depriving a person of normal rest and sleep, which can subsequently negatively affect moral health and performance.
11. Human gadfly
12. Centipede
The centipede (Scutigera coleoptrata) is an insect also called the flycatcher, which supposedly appeared in the Mediterranean. Although other sources talk about Mexico. The centipede has become very common throughout the world. Although the appearance of such insects is unattractive, they generally perform useful work, as they eat other insect pests and even spiders. True, with entomophobia (fear of insects) such an argument will not help. Usually people kill them because they are unpleasant appearance, although in some southern countries centipedes are even protected.
The flycatcher is a predator; they inject poison into the prey and then kill it. Flycatchers often settle in apartments without causing damage to food or furniture. They love moisture; centipedes can often be found in basements, under bathtubs, and in toilets. Flycatchers live from 3 to 7 years; newborns have only 4 pairs of legs, increasing them by one with each new moult.
Typically, a bite from such an insect is not alarming to humans, although it may be comparable to a minor bee sting. For some it may even be painful, but usually it is limited to tears. Of course, centipedes are not the insects that are responsible for thousands of deaths, but many of us would be surprised to learn that someone dies from these bites every year. The fact is that an allergic reaction to insect venom is possible, but this still happens extremely rarely.
13. Black Scorpion
Even though scorpions do not belong to insects, since they belong to the order of arthropods from the class of arachnids, we still included them in this list, especially since black scorpions are the most dangerous species Scorpios. Most of them live in South Africa, they can be found especially often in desert areas. Black scorpions are distinguished from other species by their thick tails and thin legs. Black scorpions sting by injecting their victim with venom, which can cause pain, paralysis and even death.
14. Predator
15. Bullet Ant
Paraponera clavata is a species of large tropical ants from the genus Paraponera Smith and the subfamily Paraponerinae (Formicidae), which have a strong sting. This ant is called a bullet because victims of its bite compare it to being shot from a pistol.
A person bitten by such an ant may feel throbbing and constant pain for 24 hours after the bite. Some local Indian tribes (Satere-Mawe, Maue, Brazil) use these ants in very painful initiation rites for boys. adult life(which leads to temporary paralysis and even blackening of the stung fingers). During the study chemical composition poison, a paralyzing neurotoxin (peptide) called poneratoxin was isolated from it.
16. Brazilian wandering spider
Also known as Phoneutria, Brazilian wandering spiders are venomous creatures that live in tropical South America and Central America. In the 2010 Guinness Book of Records, this type of spider was called the most poisonous spider peace.
Spider venom of this kind contains a powerful neurotoxin known as PhTx3. In lethal concentrations, this neurotoxin causes loss of muscle control and breathing problems, leading to paralysis and eventual suffocation. The bite is of average pain, the venom causes immediate infection of the lymphatic system, entering the bloodstream in 85% of cases leads to heart failure. Patients feel wild rigor during life; in men, priapism sometimes occurs. There is an antidote that is used on par with antibiotics, but due to the severity of the damage to the body from the poison, the detoxification procedure is effectively equal to the victim's chance of survival.
17. Malaria mosquito
18. Rat fleas
19. African honey bee
African bees (also known as killer bees) are descendants of bees brought from Africa to Brazil in the 1950s in an attempt to improve that country's honey production. Some African queens have begun to interbreed with native European bees. The resulting hybrids moved north and are still found in Southern California.
African bees look the same and in most cases behave like European bees, which currently live in the United States. They can only be detected by DNA analysis. Their stings are also no different from the sting of an ordinary bee. One very important difference between the two varieties is defensive behavior African bees, which manifests itself when protecting their nest. In some attacks in South America, African bees have killed livestock and people. This behavior has earned AMPs the nickname “killer bees.”
Additionally, this type of bee is known for behaving like an invader. Their swarms attack the hives of ordinary honey bee, invading them and installing his queen. They attack in large colonies and are ready to destroy anyone who encroaches on their queen.
Although not generally perceived as dangerous, fleas transmit numerous diseases between animals and people. Throughout history, they have contributed to the spread of many diseases, such as the bubonic plague.
21. Fire ants
Fire ants are several related ants from the Solenopsis saevissima species-group of the genus Solenopsis, which have a strong sting and poison, the effect of which is similar to a burn from a flame (hence their name). More commonly, this name refers to the invasive red fire ant, which has spread throughout the world. There are known cases of a person being stung by one ant with serious consequences, anaphylactic shock, even death.
22. Brown recluse spider
The second spider on our list, the brown recluse, does not release neurotoxins like the black widow. Its bite destroys tissue and can cause damage that can take months to heal.
The bite very often goes unnoticed, but in most cases the sensations are similar to those of a needle prick. Then within 2-8 hours the pain makes itself felt. Further, the situation develops depending on the amount of poison that enters the blood. I brown recluse spider hemolytic action, which means it causes necrosis and tissue destruction. The bite can be fatal for small children, elderly and sick people.
23. Siafu Ants
Siafu (Dorylus) - these nomadic ants mainly live in the Eastern and Central Africa, but also found already in tropical Asia. The insects live in colonies that can number up to 20 million individuals, all of them blind. They make their journeys with the help of pheromones. The colony has no permanent place residence, wandering from place to place. During their movement to feed the larvae, insects attack all invertebrate animals.
Among such ants there is a special group - soldiers. They are the ones who can sting, for which they use their hook-shaped jaws, and the size of such individuals reaches 13 mm. Soldiers' jaws are so strong that in some places in Africa they are even used to secure stitches. The wound may remain closed for as long as 4 days. Usually, after a Siafu bite, the consequences are minimal; you don’t even need to call a doctor. True, it is believed that young and elderly people are especially sensitive to the bites of such ants; deaths from complications after contact. As a result, every year, according to statistics, from 20 to 50 people die from these insects. This is facilitated by their aggressiveness, especially when defending their colony, which a person can accidentally attack.
24. Giant Asian bumblebee
Many of us have seen bumblebees - they seem quite small, and there is no particular reason to be afraid of them. Now imagine a bumblebee that grew up as if on steroids, or just look at the Asian giant. These hornets are the largest in the world - their length can reach 5 cm, and their wingspan is 7.5 centimeters. The sting length of such insects can be up to 6 mm, but neither a bee nor a wasp can compare with such a bite; bumblebees can also sting repeatedly. Such dangerous insects cannot be found in Europe or the USA, but when traveling around East Asia and the mountains of Japan, you can meet them. To understand the consequences of a bite, it is enough to listen to eyewitnesses. They compare the sensation of a bumblebee sting to a hot nail driven into the leg.
The sting venom has 8 different compounds that cause discomfort and damage soft fabrics and creating a scent that can attract more bumblebees to the prey. People who are allergic to bees can die from a reaction, but there have been cases of death due to the mandorotoxin venom, which can be dangerous if it gets deep enough into the body. It is believed that about 70 people die from such bites every year. It is curious, but the sting is not the main hunting weapon of bumblebees - they crush their enemies with their large jaws.
25. Tsetse fly
The tsetse fly lives in tropical and subtropical Africa, having chosen the Kalahari and Sahara deserts. Flies are carriers of trypanosomiasis, which causes sleeping sickness in animals and humans. Tsetse are anatomically very similar to their common relatives - they can be distinguished by the proboscis on the front of the head and the special manner in which the wings are folded. It is the proboscis that allows them to obtain the main food - the blood of wild mammals in Africa. On this continent there are 21 species of such flies, which can reach from 9 to 14 mm in length.
You should not consider flies so harmless to humans, because they actually kill people, doing this quite often. It is believed that in Africa, up to 500 thousand people are infected with sleeping sickness, transmitted by this particular insect. The disease disrupts the activity of the endocrine and cardiac systems. Then gets amazed nervous system, causing confusion and sleep disturbance. Attacks of fatigue give way to hyperactivity.
The last major epidemic was recorded in Uganda in 2008; in general, the disease is on the WHO list of forgotten ones. However, in Uganda alone, 200 thousand people have died from sleeping sickness over the past 6 years. This disease is believed to be largely responsible for the worsening economic situation in Africa. It is curious that flies attack any warm object, even a car, but they do not attack a zebra, considering it just a flash of stripes. Tsetse flies also saved Africa from soil erosion and overgrazing caused by cattle.
The man came up with different methods fight these insects. In the 30s on west coast destroyed all wild pigs, but this gave results only for 20 years. Now they are fighting by shooting wild animals, cutting down bushes and treating male flies with radiation in order to deprive them of the opportunity to reproduce.
Scientists and researchers have studied the dragonfly inside and out and found no signs that it is capable of perceiving infrared radiation; it does not have thermal sensors.
Think for yourself, why does she need it? After all, the dragonfly has the most perfect vision among all insects and it is much sharper than ours, and it sees simultaneously in all directions.
She has no hearing and a weak sense of smell, but makes up for this with her wonderful eyes.
Dragonflies are daytime hunter-predators. They do not track prey, but intercept it in the air; they fly to where the prey will be after some time. If dragonflies were able to perceive infrared radiation, they could hunt at night, but at night they sleep. In the dark they lose orientation in space.
Another characteristic of dragonflies is that the facets at the top of their eyes react acutely to blue and ultraviolet light.
The wavelength of the visible range of light is from 380 to 740 nanometers. More than 740 nm. - this is infrared thermal radiation,
not light, it is not visible to the eye. At a wavelength of up to 380 nm, this is the ultraviolet range.
We feel infrared radiation as heat coming from heated objects.
Insects - bloodsuckers - feel it the same way when they decide to drink the blood of a person or animal.
These are mosquitoes, bedbugs, ticks, mosquitoes, midges.
For example, female mosquitoes find warm-blooded prey using thermal sensors on their antennae.
From several people standing nearby, they will choose the one who is the warmest.
The tick detects a person or animal at a distance of several meters. He raises his front legs and begins to move them around different sides. There are round formations on the legs - thermolocators. When a person or animal approaches, the tick falls on him.
Moths find each other by pulses of infrared radiation. The body temperature of a flying butterfly is higher
ambient temperature, so it radiates heat. The IR beams are rhythmically interrupted by the flapping of the wings, creating pulses. Based on the frequency of these impulses, the male finds and identifies the female of his species. In addition, by pheromones he is convinced of the correctness of his choice.
American predator bug(South and Central America) uses a movable antenna - nose-proboscis - to search for prey.
Zlatki and barbels In flight, they find an area of forest burned out from a fire, because it heats up during the day more than the green massif surrounding it and is a source of powerful infrared radiation. They need this to lay eggs in the trunks of warm, charred trees.
A group of American scientists has discovered that the beauty of the wings of the Morpho Sulkowsky butterfly depends not on pigmentation, but on the structure of the chitinous scales in the form of herringbones. These scales change their size at the slightest change in temperature and, accordingly, the color of the wings changes.
Based on this effect, highly sensitive temperature sensors were created.
Insects can easily be called the most hated creatures on the planet, and for the most part because they carry life-threatening diseases such as malaria, Lyme disease and yellow fever. One particularly relevant disease for modern world is currently spreading rapidly across the Western Hemisphere, reaching pandemic proportions.
The Zika virus was first recorded in monkeys in the forests of Africa and Asia about 70 years ago; the first case of human infection was recorded in the early 1950s, and over the course of 60 years there were only 15 people infected. In 2013-14 The virus spread eastwards towards Oceania and the Pacific Islands. By 2015, he had already reached Mexico, Caribbean, Central and South America.
More than 1.5 million people in Brazil are already believed to be infected with the fever, and about 4 thousand newborns with microcephaly have been registered. The culprit for all this is disease vectors, the most hated insects known to man.
Fortunately, this is the worst thing an insect can bring to a person. Many of the other creatures on this list are not necessarily deadly to humans. Some destroy food, causing multimillion-dollar losses every year, while others cause incredible painful bites with scars that do not heal for several months. And still others gather in multimillion-dollar flocks capable of destroying huge areas agricultural land in a few days.
In any case, many of us hate those bugs that are also on this list, trying to kill them or rid our home of them at any opportunity. To find out which insects are the most hated by humans, read on!
25. Common silverfish
This is one of the oldest creatures living on our planet: their distant ancestors lived on Earth more than 300 million years ago.
Contrary to popular belief, common silverfish do not bite people - they are more of a nuisance than dangerous. These insects from the bristletail order feed on starch and sugar, so they often live in homes and food warehouses, destroying food. These little creatures are quite resilient: they can live without food for a year.
24. Mexican psyllid
Most people haven't heard of the Mexican psyllid, but that doesn't make it any less harmful. Native to South Asia, this insect is one of the leading causes of citrus disease, decimating huge citrus groves throughout Florida and California.
Over the past few years, the Mexican psyllid has destroyed orange trees, causing damage agriculture by 4 billion dollars.
23. Flea
A true terror to dogs, cats, and humans, the flea is one of the most hated insects on Earth. Capable of jumping in a way that would make any acrobat jealous, fleas can carry a host of diseases, including spotted fever Rocky Mountains and even a tapeworm.
Among in various ways killing fleas is to immerse them under water for exactly a whole day. If you keep them a little smaller, then they may look dead later, but in fact they will be able to rise from the dead. Zombie insect...
22. Bee
Scientists are shocked and cannot figure out why one of man's greatest allies - the bee - is disappearing. Even though they pollinate, at least, 30% of agricultural crops, the buzzing of bees and concerns about their sharp stings still make people hate them. Even wasps, which are the genetic ancestors of bees, hate them, often raiding hives.
Despite modern attitude man to bees, during the period of the Aegean civilization, people believed that they were a link between the world of the living and the afterlife.
21. Ant
One of the best on the planet. Despite their small sizes, it is estimated that there are up to 22,000 species of ants on Earth, which together make up 15-25% of all animals on the planet.
This means that if you put them all in one pile, it will amount to up to a quarter of the total mass of animals living on our planet. With so many and their ability to exploit resources wisely, ants have become a source of nuisance in many homes.
20. Midlings
So small that they can fit through a window screen, midges are midges 1-4 mm long. They are best known for their bloodthirstiness, although at the same time they help pollinate tropical crops such as cocoa.
19. Western cockchafer
Perhaps the least known insect on this list, Chafer the western one, however, is one of the most hated insects in history. Destroying crops since the Middle Ages, these creatures are one of the pests of fruit and berry and forest plantings.
18. Beetle
Bugs don't pose an immediate threat to human blood or skin like most of those on this list, but since they make up nearly a quarter of all known life forms, they can be pretty nasty.
And although some, such as ladybug, eat pests, others, like the well-known cotton boll weevil, can destroy entire crops.
17. Moth, moth
If this picture doesn't scare you too much, then most hairy moths can easily do this. Or what about the fact that there is a moth that feeds on human fat?
If this is not enough for you, then you probably will not be happy to see the Hercules peacock-eye flying at you in the night, whose wingspan is 27 cm, which is largest area surface of any insect!
16. Deer bloodsucker
Although the main prey of this species of bloodsucker is deer, they can also bite a dog, causing dermatitis, a horse, causing severe colic (a leading cause of premature death in horses), and a person, leaving a bite scar that may not heal for a year.
15. Mantis
"Mantis" is just a term that covers more than 2,400 species of these insects. And although male praying mantises hate members of their family (or rather, females), these insects cause no less unpleasant sensations in humans.
14. Termite
Although useful by destroying decaying plants, termites can be quite annoying, penetrating wooden houses and structures.
13. Brown marbled stink bug
This insect is known for its stink. An alarmed or provoked creature shoots from the pores of the rear torso chemical, the smell of which is reminiscent of coriander. Some species of this insect are even more disgusting due to a substance containing cyanide, which gives it the smell of rotten almonds.
12. Earwig
Although their back claws give them a scary appearance, earwigs do not actually pose a threat to humans. And talking about the fact that they can crawl into the ear and lay eggs there makes them even more terrible, although we all know very well that this is impossible.
11. Grasshopper
Although grasshoppers are herbivores, they long bodies and paws, as well as the ability to quickly and unexpectedly jump in an unknown direction is frightening for large quantity of people.
Locusts, similar to grasshoppers (and for most people they are practically the same insect), forming swarms of up to hundreds of millions of individuals, are capable of destroying vegetation on huge territory. The largest locust outbreak was recorded in 1875, when locusts formed a swarm 2,900 km long and 180 km wide.
10. Centipede mosquito
This insect is short-lived, but extremely loving: throughout the 80 hours of its life, the male tries not to let go of the female. That's why they got the name "lovebug" in English.
Anyone who has ever traveled by car in the southeastern part of the United States has serious reasons to hate these insects. Millions of these creatures (in a paired state) remain on the front window of the car.
9. Nettle Caterpillar Caterpillar
It may look cute and fluffy, but in fact it has a rather unpleasant feature: if you touch it, a substance will be released from the hairs that can cause an intense and painful burning sensation, which may subside only after a few hours.
8. Bed bug
Man has ample reason to hate this creature, although it is also the object of hatred among its male relatives. The fact is that male bed bugs are sexually attracted to any new bed bug, whether it is male or female. The danger for males is that their abdomens are not as thick as those of females to protect them from the tiny, needle-like penis. Massive infestation bed bugs, they say, resembles the smell of rotting raspberries.
7. Head louse
The scourge of children around the world, head louse infects an estimated 6-12 million people in the United States each year. Although there are no known cases of louses transmitting any disease other than themselves, which are transmitted through close contact, they are generally harmless to humans.
A study is currently underway in which scientists want to understand whether a person with head lice develops natural immunity to the more dangerous body lice (which are known to transmit disease). But I think this is not a study that any of us would like to take part in.
6. Horseflies
A horsefly bite can be very painful to humans, sometimes causing shortness of breath and dizziness. People hate these creatures from generation to generation. Threatening factor is that they can be carriers anthrax, infecting large cattle and sheep.
5. Cockroach
As one of the few creatures capable of surviving a nuclear holocaust, cockroaches are ancient insects that have lived on Earth for over 320 million years.
Cockroaches are amazingly resilient insects, capable of going without air for 45 minutes and living without food for a month.
4. Wasp
This aggressive owner of a sharp sting scares people everywhere. Wasps most often bite in late summer - as soon as the queen stops breeding new offspring, and worker wasps go in search of food.
To avoid becoming a victim of a wasp sting, just try to avoid them. If you start waving your arms, trying to drive them away, the effect will be the opposite.
3. Flour beetles
If you are afraid of cockroaches, then you need to be even more afraid of these creatures. These tiny, hateful pests can withstand higher levels of radiation than cockroaches and are resistant to an ever-growing list of insecticides.
2. Predators
The very name of this insect already suggests that a person needs to be wary of it. Possessing a large curved proboscis, predators inject deadly saliva into their prey, liquefying its insides, which they then suck out. What is left of the devastated insect, these bugs then use to hunt their next victim.
If they bite a person (usually near the lips), the reaction can be extremely painful and may even require medical attention.
1. Mosquito
Easily ranked first on the list of the most hated insects to humans, mosquitoes kill more people than any other animal on the planet.
Well known as carriers of malaria and yellow fever, they were also responsible for the Zika virus epidemic that swept through South America.
Mosquitoes are most attracted to pregnant women, people with difficulty breathing, with blood group I, with increased sweating, with elevated temperature bodies. Unfortunately for some families, genetics also influence mosquito attractiveness.
Intellectual quiz with answers “In the world of insects” for students primary classes
Bestik Irina Viktorovna, teacher of the Regional Special (Correctional) Boarding School for Children with Hearing Impairments, KSU, Republic of Kazakhstan, North Kazakhstan Region, Petropavlovsk.
Description: cognitive test about insects is intended for teachers working at the primary level to organize summer leisure in the form intellectual quiz By environmental education for younger schoolchildren, broadens children's horizons about interesting facts from the life of insects. Students must answer the test questions on this topic, selecting one correct answer for each question.
Target: organization of summer leisure in the form of an educational quiz for elementary school students on the topic: “Insects.”
Tasks:
- test students’ knowledge on this topic;
- expand children's horizons about the diverse world of insects,
- introduce students to interesting facts from the life of insects;
- instill interest in students in studying the life of insects;
- bring up careful attitude to nature;
- develop logical thinking, cognitive abilities and memory of students.
Intellectual quiz “In the world of insects” (for primary school students)
1. What were the first living creatures to appear on Earth more than 400 million years ago?A) fish;
B) animals;
IN) insects;
D) dinosaurs.
2. What branch of science studies insects?
A) zoology;
B) entomology;
B) algology;
D) ichthyology.
3. How much of the world's crops are eaten by insects per year?
A) 10-15%;
B) 5-10%;
B) 15-20%;
G) 25-30% .
4. What insects create high towers out of clay where other insects find refuge?
A) ants;
B) termites;
B) bees;
D) wasps.
5. What insect pretends to be dead when attacked?
A) butterfly;
B) dragonfly;
B) firefly;
D) praying mantis.
6. Which insect has the largest brain in relation to its body?
A) mosquito;
B) praying mantis;
IN) ant;
D) caterpillar.
7. What insects recognize and find each other using light signals?
A) fireflies;
B) ants;
B) caterpillars;
D) beetles.
8. Which insect is the heaviest, weighing up to 100 grams?
A) gold beetle;
B) goliath beetle;
B) cockchafer;
D) bombardier beetle.
9. Which insect is the fastest-winged?
A) fly;
B) wasp;
IN) dragonfly;
D) butterfly.
10. What insect can not eat until it is 10 years old?
A) mite;
B) mosquito;
B) ant;
D) bee.
11. In which country are fried crickets and locusts considered a delicacy?
A) in New Zealand;
B) in India;
B) in France;
G) in Thailand.
12. Which insect has 5 eyes, 3 of which are located on top of the head, and 2 in the front of it?
A) ant;
B) bee;
B) grasshopper;
D) weevil.
13. What is the only insect that can turn its head?
A) ant;
B) grasshopper;
IN) mantis;
D) caterpillar.
14. What color is a grasshopper’s blood?
A) white
;
B) red;
IN) of blue color;
D) black.
15. Which insect needs solar heat in order to fly?
A) dragonfly;
B) gadfly;
B) bee;
G) butterfly.
16. Which insect, when attacked, injects a smelling liquid from knee joints your legs?
A) stag beetle;
B) ladybug;
B) praying mantis;
D) locusts.
17. Which insect larva is a terrible underwater predator, attacking even small fish?
A) grasshopper;
B) sawfly;
B) praying mantis;
G) dragonflies.
18. Which insect replenishes fluid loss by sucking tears from sleeping animals?
A) mole;
B) tick;
B) gadfly;
D) mosquito.
19. Which insect makes the loudest sound, comparable to being next to an orchestra?
A) grasshopper;
B) locusts;
B) bombardier beetle;
G) water bug.
True crickets are a family of more than 2,000 species. The most common of them live in the European part of Russia - field and brownie. In everyday life they are called garden and home. They prefer not to show themselves to humans, so few people know what a cricket looks like, but summer residents regularly listen to the chirping of this insect.
Description and characteristics
During the cold season, house crickets hide in buildings and heating mains. As summer approaches, they move outside. Unlike mosquitoes, flies and cockroaches, they do not cause negativity.
They love moisture. The Mediterranean climate is comfortable for them, where species diversity more than in other parts of the planet. Externally, a cricket looks like a beetle, but its hips hind legs he has thickened ones like jumping insects.
They see well, but lack dexterity, so they become easy prey for birds. The head is large. The body is elongated, ending in the cerci. Males and females have them. Thin long antennae give crickets a resemblance to black cockroaches, but the latter are not jumping.
Its habitat includes the countries of Europe, Asia, the Americas and Africa. Body length adult reaches 2.5 cm. The standard size is from 1.5 cm. The coloring of the brownie (domestic) type is uneven: on a brown background there are stains, spots and specks of light and dark shades.
Steppe crickets (field, garden) differ from house crickets in color, this can be seen in the photo. Their body is black, without inclusions. The length reaches 2 cm. At the beginning of summer, a new generation of insects appears, the larvae of which overwintered under covering material and remnants of vegetation. Females are not particularly fertile. Each season lays up to 5 eggs. After the mission of procreation is completed, the female will die.
Are crickets harmful?
We are ready to suspect anyone of the death of young plants, except a positive character we have not known since childhood. Having family ties with the mole cricket, these insects also gnaw the stems of seedlings. They are omnivores. The following crops stand out from what crickets eat:
- Peas;
- Beans;
- Corn;
- Tomatoes;
- Carrot;
- Cabbage.
They are not interested in weeds; their gastronomic interests are exclusively in garden plants. Although the cricket does not look as scary as it does, it does no less harm. When there are few insects, the damage from them is not so noticeable, but as soon as the population grows, serious damage is caused to the crop. This also applies to crops of rye, wheat, and flax. Field crickets happily settle in cereal fields.
Cricket farm
Breeding at home for feeding ornamental birds, exotic insects and reptiles requires the creation of a cricket farm.
Protein food is beneficial poultry. It is useful to keep a farm for those who raise quails.
Protein-rich cricket is included in national cuisine Asian countries.
To create a farm you will need closed containers with ventilation. Cardboard cassettes for eggs are placed in them. In captivity, crickets feed on dry food, such as:
- Gammarus (mormysh);
- Powdered milk and cream;
- Infant formula;
- Hercules;
- Muesli.
Food is poured onto the bottom of the container, and perishable wet food (dandelion and burdock leaves, apples, carrots) is placed in the feeder. Keeping crickets in captivity requires the creation of a favorable microclimate; this is not an easy task.
Folk signs
A single cricket in the house does not pose a danger - it does not spoil food and does not bite. There are many signs associated with him. Some of them promise changes for the better. There are also those who warn of danger: flying around a house or bathhouse, a cricket anticipates a fire.
Our grandmothers did not wonder how to get rid of crickets in the house. They believed that soon after he sneaks behind the stove, the unmarried girl should wait for the groom. Pregnancy and childbirth will be easy, and the patient will be cured. But to kill a cricket meant inviting misfortune upon oneself.
Ways to fight in the garden
If you notice that young seedlings are being destroyed by crickets, and apply chemicals consider it inappropriate, the most effective method How to get rid of a pest is biological.
The gardener's assistants in the fight against field (steppe) crickets are birds. For them, these high-protein insects are a delicacy. Hang birdhouses around the area and the birds will deal with the crickets.
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Watering will help determine who is destroying the seedlings. If the cricket has not yet gone far, the water will force it to the surface.
Traps from plastic bottles with leftover beer or kvass. They are dug into the ground so that the necks barely protrude above the ground.
You need to look for crickets where it is warm and humid. In the morning they sit under sheets of slate, covering material, under pots and bowls, boards and mulch. Crickets cannot stand the smell of wormwood. Wormwood decoction is poured onto the soil around the plants. This method is also suitable for a greenhouse.