Trilobite beetle: a rare insect that does not age, but lives and dies as a larva

• Sinanthropus hayeaters
• Ways to enter apartments
• How to detect hay beetles?
• Diet
• Harm of hay beetles to people
• How to get rid of a domestic book beetle?
• What are the best remedies for hayworms?

Sometimes the human home is inhabited by insects whose existence we do not suspect. The hay beetle, a tiny beetle similar to a louse, is a real “natural disaster” for museums, archives, and libraries that can cause serious harm. There are hay eaters in the apartment. They settle in a person’s home and begin to demonstrate an excellent appetite and extraordinary gourmet habits. Colonies multiply quickly, so it is important to know what pest beetles look like, how dangerous they are for the home where they live, and how you can effectively get rid of them.

Sinanthropus hayeaters

Entomologists know of 1,700 species of the hay-eater order. Two of them take root at home: the book louse and the dusty (house) hay louse. For both species, the microclimate of human dwellings is favorable, in which it is warm and humid, close to natural living conditions.

The louse is small, 1-2 mm in length, with a flat oval body. Characteristic features of the “appearance” are long antennae and large spherical eyes. The color of the beetles is dull, light, reddish-brown. The book louse does not have wings, only their rudimentary remains, and cannot jump, but other insects will “envy” the mobility of the bugs.

Females reproduce without fertilization. The female lays up to 60 eggs per day. After laying, it weaves a silk mesh over them. The larvae appear after 10-12 days, develop and become sexually mature after a month. The growth of the colony occurs rapidly, and it is difficult to get rid of the multiplied insects.

The life cycle of individuals depends on humidity and temperature. The maximum lifespan is 50-53 weeks. Insects have the ability to survive for long periods of time without food. Six generations of the dust hay beetle reproduce per year.

Trilobite beetle: a rare insect that does not age, but lives and dies as a larva

Insects, most often, evoke admiration and tenderness only among entomologists. But today we will tell you about an individual who has a unique property that all modern ladies dream of - eternal youth.

Source: yandex.ru

We will talk about trilobite beetles. You can meet the booger in Southeast Asia near trees and bushes. Connoisseurs of paleontological facts can confidently argue that trilobites are creatures that have long since died out. Yes this is true. The ancient creatures of the same name, which inhabited the earth about 500 million years ago, no longer exist in nature. And these insects, belonging to the red-winged insects, are so named for their external resemblance to arthropods that lived in distant eras. In fact, they are not their ancestors; relatives of insects are scarabs, ladybugs and fireflies.

Source: yandex.ru

The appearance of trilobite beetles is impressive. The body is 80 mm long and covered with growths and plates. But this is typical only for females and larvae. Males look completely different from them - ordinary chitinous wings and antennae, nothing remarkable. Well, the ladies not only shine in bright fashionable outfits, but also have the secret of eternal youth. Having been born as a larva, they, in fact, remain one throughout their entire life. But the males change and become adults and only after that can they begin to reproduce. Females are ready already at the larval stage (in science this phenomenon is called neoteny - the achievement of sexual maturity and the end of ontogenesis in the early stages of development, for example, at the larval stage). True, men have wings, but eternally young ladies do not have such an attribute.

Male. Source: yandex.ru

On top of that, the insect is poisonous, so there are no hunters to try unusual potential food. Beetles warn birds and other enemies of their inedibility with bright colors, signaling danger.

Source: yandex.ru

The diet of males includes exclusively plant foods, but females are not averse to pampering themselves with protein delicacies. It was once believed that individuals were only interested in rotten wood sap. And only in 1996, scientists established that with the help of a special device - modified mandibles - they suck out from the bark of a rotting tree what, in their opinion, is the most delicious cocktail of tiny microorganisms that live there.

Source: yandex.ru

When the time comes for reproduction, the ladies attract the attention of the gentlemen in every possible way - with body movements and pheromones they inform them that they are ready for action. The mating process lasts up to 5 hours, after which the male falls dead with a sense of accomplishment, and the mother lays up to 200 eggs and goes to her forefathers after the chosen one. Newborn babies will have to independently master all the wisdom of life.
1111

Ways to enter apartments

The house book louse and the dusty hay beetle attack new panel buildings. The scale of invasions of hay beetles into new apartments is comparable to cockroach infestations. The reasons for the reproduction and emergence of colonies in the apartment are simple: insects have no natural enemies at home, and they are easy to bring from outside.

The domestic book beetle feels comfortable in high humidity. Due to design errors in construction, excess moisture and then mold accumulate between the floors of new buildings, in the seams between panels. The louse can feed on putty and wet plaster. Settling in such places, it spreads throughout the apartment and multiplies. New residents have no idea that as part of their first steps they will have to get rid of unpleasant neighbors.

At risk are apartments above the ground floors, under the roof, and corner apartments, in which moisture accumulation in the seams and the appearance of mold are most likely. Other risk factors:

• lack of quality ventilation;
• installation of insulation inside residential premises, as a result of which condensation accumulates between it and the wall;
• defects in waterproofing that should be eliminated at the repair stage.

In “Stalin” and “Khrushchev” buildings you can still find wallpaper glued to paste. The space behind them is also a favorable environment for pest beetles.

You can bring beetles into an apartment or private house along with books contaminated with cereals from a store or market. If there are no obstacles, the louse can get inside on its own through cracks in window openings and through ventilation holes. If hay eaters find favorable conditions, they will stay and reproduce until you decide to get rid of them.

Mold is the cause of hayworms

Those most at risk are corner apartments, where the humidity is always higher, apartments on the lower floors, especially if the house has basements, and apartments on the upper floors - next to the roof. Gradually, insects can spread throughout the house along the riser or cracks in the walls and ceilings. It is almost impossible to remove mold that has accumulated between walls and plaster on your own. Panel houses are especially affected. Monolithic and brick structures are inhabited by hay eaters much less frequently.

The situation is aggravated by the fact that with poor quality construction, partial or complete freezing of the walls is possible. The worst option is when the insulation is installed indoors. Gradually, condensation accumulates between the insulation board and the wall, which has no normal outlet. Mold begins to grow in the cracks. The lack of normal ventilation is also an important factor. It is ideal when ventilation covers all rooms in the apartment. In fact, ventilation openings are most often installed only in the kitchen and bathroom. That's all. Considering that modern apartments are entirely filled with plastic windows (without supply valves in the walls) and solid entrance doors, ideal conditions are created for the development of mold and the infestation of associated pests.

Harm from mold to humans

The smallest mold spores will always be present in the air of the room where it has started. These spores, when placed in a favorable environment, germinate, giving rise to a new colony of the fungus. Such a colony can even develop in humans. Often, a mushroom body, similar to chronic sinusitis, is detected on an x-ray in the maxillary sinuses. How did it get there? Very simple. The person inhaled the spores, and they sprouted in the favorable environment of the nasal mucosa and turned into an extensive fungal body, gradually poisoning the body. If a person feels chronic fatigue and has been tormented by a runny nose for months, then it is likely that the cause is mold, which is gradually developing in his body.

How to detect hay beetles?

The book louse has undeveloped jaws. Before consumption, she crushes the solid particles of her food. To do this, there is a process on the head with which it “works” like a hammer, crushing solid food. The insect's proboscis is surrounded by powerful muscles; it can even rotate, making it a dexterous tool.

At night, when all household sounds die down, you can hear a characteristic tapping sound, similar to the ticking of a clock. This sound is one of the signs that hay eaters have settled in the apartment and will have to get rid of them.

The presence of beetles in the kitchen is detected by excrement, spots and scales after molting, in flour, and cereals. You can visually detect insects in the bathroom, toilet, under carpets, under wallpaper, and in flower pots. They group in nests covered with cobwebs.

The domestic book beetle is often discovered not at the moment of its appearance, but much later. When a beetle settles in favorable conditions, it begins to actively reproduce, so the owners deal with a colony, and not with individual representatives of the species. The problem arises of how to get rid of parasites at once. The fight should begin immediately after at least one individual is discovered.

Fight against hay beetles and mold

Dealing with hay beetles is quite easy - it is enough to carry out one or two treatments with contact insecticidal preparations within the infected apartment. The best results are obtained by treatment with cold or hot steam (“hot fog”). This method gets rid of small insects instantly and for sure. At the same time, the proximity to cockroaches, bedbugs, and fleas, if any, is eliminated.

In parallel with insecticide treatment, it is advisable to disinfect the premises from mold, which these insects feed on. A humid environment is always a provoking factor for the occurrence of mold. Hay eaters are not the worst thing to be afraid of, although such a neighborhood is quite unpleasant for a person. The mold next to them is much worse. Mold fungi can affect humans and lead to intractable chronic diseases. Fungicidal preparations are used for disinfection. Hot fog is used against mold. When using this method, the smallest particles of the solution get into the most inaccessible places - under wallpaper, into cracks in the joints of walls and ceilings, peeling plaster, etc.

All shortcomings made during construction must be eliminated by the management company. Repairing cracks in wall joints, repairing roofs and basements, and eliminating leaks is the responsibility of the management company.

Be sure to take measures to dry the premises.

How to dry an apartment after renovation

In winter, drying is not a particular problem - just turn on the central heating radiators. In summer, it is necessary to use heat guns. Do not forget about regular ventilation of the apartment. It is ideal if special ventilation valves are installed under the windows and the hood is functioning. If the humidity remains high, then you need to check the serviceability of the plumbing and pipes. If the plumbing was installed improperly, then there may be hidden faults in the plumbing equipment, then moisture will leak unnoticed, gradually accumulating in wall voids, under the bathtub and other hard-to-reach places.

Diet

The name of house pests indicates their preference for organic food. In the natural environment, beetles eat plant debris, molds, and various lichens; at home, they find analogues of such food. In a city apartment, hay eaters will be interested in:

• objects of plant origin: herbariums, biological collections;
• sachet with herbs;
• books bound from natural materials;
• furniture and carpets.

The dusty house beetle is more inclined towards kitchen supplies, rather than towards “book knowledge”. Having settled in the kitchen, the beetle will feed on cereals, millet, flour, and feast on buckwheat. Insects give particular food preference to damp cereals. Mold in the corners of the bathroom, along the ventilation shafts, is also a source of adequate nutrition for insects.

In the wild, beetles feed on dead plant tissue. There is an unproven hypothesis that household pests may feed on dead individuals of their own species.

Hay eater: what kind of insect is it?

In tropical forests and subtropical zones you can often find a small representative of the fauna with two pairs of colorless wings, sometimes covered with dark spots, which fold on the abdomen when stationary. The size of these insects does not exceed 1 cm, but more often it ranges from 0.6 to 7 mm. Hay eaters, as representatives of this order are called, are, in biological terms, insects with incomplete metamorphosis. This means that their life cycle consists of only three stages: eggs, larvae and adults. Moreover, the larvae are externally similar to adult individuals, they are, as it were, a smaller copy of them and lead a lifestyle similar to the imago.

Some species of hay beetles have two pairs of colorless wings with thin veins

The order of hay eaters is very heterogeneous. Currently, scientists have studied more than 5 thousand species. This number includes 120 fossil remains found during paleontological expeditions. Outwardly, many species are not similar to each other, and sometimes even have more similarities with representatives of other orders. One of the clearest confirmations of this is the presence or absence of wings. In some species they are shortened, in others they are completely absent. Senoyeds are also characterized by sexual dimorphism, which is expressed in the fact that females of winged species can be either short-winged or completely wingless. Males have enlarged spherical eyes and antennae densely covered with hairs.

At the beginning of the 20th century, entomologists put forward a hypothesis according to which the ancient forms of hay eaters, who lived in animal burrows and bird nests, were the ancestors of parasitic insects - lice, lice and bedbugs. This assumption fully explains the external similarity of some species of hay beetles with the latest representatives of insects.

Certain species of hay eaters are more similar in appearance to representatives of other orders - Lice and Lice Eaters

In the wild, each species chooses the most suitable conditions for itself. This could be the bark or crowns of trees, nests of birds or other insects, dead wood or forest litter. There are even species that live under rocks. But almost always the best habitat is the presence of lichens nearby, which provide both a home and food for insects. Some species have adapted to the human environment. The most widespread are the book louse (Liposcelis divinatorius) and the house louse (Trogium pulsatorium).

In the wild, hay beetles live mainly in places with an abundance of lichens, remains of plant and animal origin

Video: hay beetles in the wild

Book louse

This species is the smallest representative of the order. Its dimensions are about 1 mm. The body is light, almost white with a yellowish or slightly brown tint, flattened in the dorsal and ventral parts, slightly widened and rounded at the back. The head is quite large. The antennae are longer than the head, gradually tapering towards the edges. Wings are completely absent.

In nature, they most often live in rodent burrows and bird nests. The food consists mainly of various remains of animal and plant origin, wood dust, rotting leaves, terrestrial algae, molds and parasitic fungi. Living tissues of higher plants are consumed extremely rarely.

Hay eater eggs can develop without fertilization, which contributes to the rapid reproduction of individuals. During the day, the female lays from 60 to 100 eggs: one or several at a time. Each clutch is covered with intestinal secretions, which dry out to form scales and perform a protective function. The larvae emerging from the eggs sometimes unite in groups, creating common web nests, or lead a solitary lifestyle. At a temperature of 16–35°C, the life cycle of hay beetles is 3–4 weeks. In one year, up to six generations are reproduced in natural conditions, and in domestic conditions, which are optimal, insects develop continuously.

Book louse is a small insect of pale brown or white color.

Dust louse, or house louse

A species close to the book louse. It differs only in morphological features. In appearance, this insect is light yellow in color with reddish-brown stripes on the upper part of the abdomen.

Dust louse is a light yellow insect with longitudinal stripes on the upper part of the abdomen

In addition, the dust louse is slightly larger than the book louse and reaches 2 mm in size. It also has appendages to the rear wall of the body - rudimentary wings.

Externally, the dust louse differs from the book louse in being larger in size.

Harm of hay beetles to people

The feeding habits of insects determine the damage they cause to human property. Here's what a colony is capable of:

• destruction of herbariums and other products, home hunting collections, archival documents;
• damage to family albums with photographs and books. Book lovers are lovers of rarities. They destroy ancient bindings made of paper and other natural materials, they love casein glue and paste, but on more modern editions they leave numerous traces of their activity, which spoils the appearance of the books;
• destruction of stocks of dried herbs;
• spoilage of flour and cereals if insects have settled in the kitchen.

Pests do not pose a threat to the life and health of people, if you do not take into account the moral damage from a hopelessly damaged valuable tome, a favorite home album. They do not bite and do not carry pathogens. In some cases, people have mild allergic reactions after touching objects that have been touched by a book louse. Products damaged by insects lose their presentation and become unfit for consumption.

Book bugs pose a danger to people suffering from insectophobia. The problem is purely psychological, but it causes a lot of trouble, so it is better to get rid of book lice and house beetles immediately after detection.

Bloodsucking

Insects of this species feed on blood and can infect people with serious diseases:

Bed bugs

A common blood-sucking insect of the bug species, order Coleoptera. Ectoparasite of humans and warm-blooded animals. An insect with a body size of 4-8 millimeters. It has a color ranging from light yellow to dark brown. Leads a nocturnal parasitic lifestyle. It feeds exclusively on blood. Average life expectancy is 1 year. Habitat: pillows, mattresses, cracks in the floor and under wallpaper. It does not cause harm to people, only in some cases there are allergic reactions to the bite.

Mosquitoes

The common mosquito (blood-sucking) belongs to the family of dipterous insects, a polytypic species. It has body sizes from 3 to 7 millimeters. Most species are yellow in color. And in this blood-sucking species it is mostly gray, less often brown. Leads a parasitic lifestyle. Females feed on plant sap and human blood (for eggs), and males feed exclusively on plant sap. The lifespan of the female ranges from 43 to 57 days depending on air temperature and nutrition, while the male lives only 19 days. Habitat: damp places and marshy areas.

Fleas

Small blood-sucking insects of the common flea family. They lead a parasitic lifestyle. Body length is from 1 to 5 millimeters. The color is dark brown. They feed exclusively on the blood of warm-blooded animals and humans. The lifespan of a flea is several months. Habitat – larvae live and lay in carpets, behind baseboards, in cellars and basements, in soft toys.

Very small insects are ectoparasites. The order is lice eaters. They lead a parasitic lifestyle. They have body dimensions of 4-6 millimeters. They feed exclusively on the blood of the host. Life expectancy is 38 days. They live on birds, mammals and humans. There are two types of lice in humans: pubic and head lice, which live exclusively on hair. They are carriers of typhus and relapsing fever.

How to get rid of a domestic book beetle?

Prevention of occurrence

If you have a library in your apartment or just a closet with old publications, periodically review books, pick them up, and flip through the pages. You may not see the beetles themselves, but you will definitely find the remains of chitinous cover and excrement.

To prevent hay eaters from settling in your apartment, follow these simple recommendations as preventive measures:

• periodically check the expiration date of flour and cereals, get rid of expired household supplies;
• keep clean, prevent mold from accumulating in the bathroom and kitchen, reduce humidity levels;
• regularly check the condition of dried berries and herbs;
• ventilate the room, regularly wipe dust in bookcases, do wet cleaning;
• Take proper care of indoor plants. Overwatering can cause mold in pots, which will attract small insects;
• do not allow debris to accumulate.

Folk remedies

To save books or other items damaged by book lice at home, they need to be placed in a bag in the freezer or placed in direct sunlight. The essence of the extermination method is to change the microclimatic conditions in the home, resulting in the death of insects. However, this method only allows you to save a valuable item, but does not make it possible to get rid of all insects in the apartment or destroy laid eggs.

This recipe limits the list of folk remedies for fighting book louse. If you want to get rid of the colony quickly and effectively, you will need pest control.

Professional pest control

For those who were unable to remove the hay beetle on their own, using traditional methods, exterminators from the store, professional treatment methods are relevant, allowing you to get rid of the hay beetle with a guarantee. Specialists of sanitary and epidemiological services practice treating apartments with cold and hot fog and applying pest control agents to surfaces. Spraying insecticides over the area of ​​the apartment is carried out using special devices. Complex drugs of hazard classes 3 and 4 are used, selected in accordance with the composition of the family. The owners are guaranteed the safety of furniture and household appliances.

The most commonly used drugs are:

• “Executioner Super” is an effective drug against adult beetles and eggs. One bottle of concentrate is enough to treat a two-room apartment. The active ingredient is fenthion at a concentration of 27.5%. The product can be used when insects are found in the apartment, but their species cannot be determined. "Executioner Super" allows you to get rid of all types of invertebrates;
• aerosol “Cucaracha” is a combined preparation based on tetramethrin, deltamethrin, butoxide. After treating the surfaces, it is recommended to ventilate the apartment. When spraying, you must use personal protective equipment;
• "Akarin", a product based on avermectin, allows you to get rid of eggs and adult beetles;
• "Flitsid" based on Caucasian chamomile pyrethrum. Belongs to the class of pyrethroids and has a paralytic effect. A single treatment may not be enough to completely get rid of the pest beetle population;
• "Get Total", a low-toxic drug, approved for use in premises with children and pets. The drug is concentrated, diluted in a proportion of 50 grams per liter of water.

You can quickly get rid of book bugs by using Arox and Raptor fumigators, spraying them on surfaces.

The use of insecticides on books is undesirable; spraying can damage the publications. When using chemicals yourself, you need to be extremely careful and strictly follow the instructions.

We suggest that you familiarize yourself with the rating of companies from which you can order disinfestation against hay-eating beetles in an apartment, library, or archive. The website provides up-to-date information, contact details, and the estimated cost of professional pest control services.

Insects in food

Insects of this species are destroyers of food supplies and can harm human health:

Mucoed

Small insect, order Coleoptera. Body length 1.5-2.5 millimeters. The color is red. Habitat – premises with high humidity and air temperature of at least 20 degrees (barns, granaries, mills, food warehouses). They feed on flour, all types of cereals and flour products, and do not disdain any other types of food, therefore they are malicious pests.

Bread grinder

Small beetle, family of grinders, order - Coleoptera. Body dimensions 1.7-3.8 millimeters. The color is red-brown. Leads a nocturnal lifestyle. It feeds on everything in the world, even some types of poisonous drugs. Life expectancy 1 month.

Flour beetle

Small insect of the darkling beetle family, order Coleoptera. Body dimensions 12-18 millimeters. The color is brown. Lives in kitchen furniture, food pantries, grain barns, pasta factories. Life expectancy 1 year. Omnivorous food. The harm lies in spoiled almost all types of food.

Weevil

Insect, order – Coleoptera. Body dimensions 1-30 millimeters. It can be black, yellow, brown depending on the habitat. They live inside plants and in the soil. They live from 1 to 2 years. They feed on dicotyledonous plants and plant roots. Pests of agricultural and forest lands, including granary cereals.

food moth

A very hardy and tenacious insect. A small butterfly with a body size of 8-10 millimeters. The color is grey-brown. Lives in kitchen furniture. Loves high humidity. Life expectancy is 2-3 weeks. It eats dried fruits, flour, tea, coffee, baby food, cereals, all types of pasta and much more. Spoils all kinds of food products, harming people.

Maybe there will be a person who will be interested in watching the grinder beetle that starts in the furniture. But most people decide to get rid of such neighbors. After all, this insect can cause enormous damage to wood and products made from it. After its stay, the wood turns into dust in just a few months. How to recognize this particular beetle? What types of grinders are there? And, most importantly, how to destroy pests.