The insect is silvery and resembles a small cockroach, and looks like a cockroach

Although the German cockroach is named after Germany, it is actually native to Africa. Due to international exchanges, it is imported into China in the process of commodity circulation.

Because its body shape is similar to that of other common cockroaches, the size of the individual is about a quarter of the adult cockroach, which is a species of cockroach. The harm caused by German cockroaches to people is similar to that of other cockroaches, mainly because they spread many harmful substances and germs to people's food and utensils during their activities, causing harm to people's lives and health.

This thing is a cockroach, it looks like a cockroach hatchling.

Dragon lice (water cockroaches). Dragon lice (water cockroach), also known as water turtle, is an aquatic insect, a general term for the large and small species of the dragon lice family, it has a huge family, there are about 160 species in our country alone, the most common is the Japanese sucker dragon lice, as well as the black dragon lice, the Oriental three-star dragon lice, etc.

Morphological characteristicsThe body is large, centimeter long, oval, flat, shiny, and some species have stripes or dots. The whole body is black, the sheath side margin is yellow, and the black part flashes green. The compound eyes are located at the back of the head, immediately against the anterior edge of the chest.

The basal ganglia of the forefoot and midfoot are small, the hind foot is developed, the side is flattened like an oar, the coat is long, the basal segment is broad, the left and right are in contact, and the tarsal segment is 5 segments, which is suitable for swimming.

It's cockroaches.

Most of them look similar, but a closer look reveals the difference. Current taxonomists classify cockroaches into about 6,000 species, of which about 50 are pests, such as the common Asian cockroach.

In addition, the American cockroach (American cockroach.

German cockroach (German cockroach.

Brown cockroaches and Australian.

Cockroaches are also widely distributed. There are about 200 species in China, and there are about 10 species of common indoor cockroaches, which vary from place to place. Common ones are the German cockroach, the American cockroach and the black-breasted cockroach.

Morphological characteristics

A biologist once came to a conclusion based on the ecological habits of cockroaches: if one day there is a global nuclear war on the earth, all living things in the affected area, including humans and even fish, will disappear, and only cockroaches will continue their lives! This is because the amount of radiation that the human body can tolerate is normally 5 rems, and if the total radiation exceeds 800 rems, death is inevitable.

While the German cockroach can tolerate 9,000 105,000rems, the American cockroach reaches 967,500rem! (Indicates the radiation dose.) REM dose equivalent to rem.

rem) Nozomi [Walt](sv) 1sv=100rem) so cockroaches can survive even with nuclei**. United States**.

The cost of eradicating cockroaches alone amounts to $1.5 billion a year, about double the budget spent on AIDS.

This should be a step beetle.

Brown beetle. Scarab is an invertebrate, insecta, and Coleoptera is an omnivorous pest. In addition to harming pears, peaches, plums, grapes, apples, citrus, etc., it also harms willow, mulberry, camphor, privet and other forest trees.

Common ones are Aeruginosa scarab, North Korean black Scarab, Tawny Scarab, Dark Scarab and so on. Scarab is the umbrella term for insects in the family Scarabidae, with more than 26,000 species worldwide. It can be found on continents other than Antarctica.

Different species live in different environments, such as deserts, farmlands, forests, and grasslands.

This is a German cockroach, which is also a type of cockroach.

The German cockroach (Blattella germanica) is the most widely distributed and the most difficult to control household hygiene pests in the world. In addition to stealing food, contaminating food, damaging clothing, books, and destroying computers and other precision instruments.

In addition to the economic losses, the main harm is the spread of a large number of diseases. Due to its strong adaptability and rapid reproduction, the German cockroach is prone to resistance to chemical pesticides, so it is very difficult to control it.

Habits. The German cockroach first originated in Africa, where it was hot and humid, and still prefers to inhabit relatively warm and humid environments. Nymphs have the same habits as adults, and are negative phototaxis insects, and they hide in warm, moist and dark hidden places during the day, such as walls, ceilings, crevices and corners of furniture such as cabinets and tables.

Debris piles, gutters, various plumbing pipes and cracks in power lines are all hiding places for German cockroaches, coming out at night in search of food, water and mating. If you see a German cockroach during the day, it means that the area is infested with cockroaches, and the crevices where you can hide are infested with insects or lack of food and humidity.

Flying bugs that look like cockroaches are short-winged, fast-legged, long-legged bugs.

The dorsal plate of the anterior thorax is black, the anterior lobes are dull, somewhat gray and powdery, and the posterior lobes are sometimes slightly pale and black-brown, with "M" shaped melasma, ** pierced by a slightly raised middle ridge. The lateral edge of the anterior lobe is very finely serrated, the lateral margin of the junction of the two lobes is slightly indented, and the posterior margin is slightly concave.

The small shield pieces are black, matte, ** with 1 pair of small brown spots, yellowish-white at the ends. The background color of the leather pieces and claw pieces is black, the claw pieces have L spots near the base, and the suture margin of the claw pieces is yellow and white. The base of the leading edge of the leather piece is half pale color, and the apex and end margins are black.

There is a white spot about a triangle at the front end of the apex angle, and a broad black band in front of this spot. The diaphragm is blackish-brown with a pale tip and is separated from the front black by an irregular "M"-shaped pale stripe. The wings are short, often exposing the 7th abdominal segment, and the lateral borders of the 5th and 6th segments each have 1 macula.

The subbody is black, the basal segments are white, the lower margins of the prothorax, the posterior margin of the posterior thoracic lateral plate and the posterior horns are brown, the subjoints, the base of the anterior femur and the basal half of the middle and posterior femoral segments, the tarsal joints of the tibial joints of the midfoot are pale yellow, and the rest of the feet are black-brown.

Habits of the long bug family:

Most of the insects of the family of bugs are herbivorous, and many groups suck the sap of plant stems and leaves, while a considerable number of species exclusively eat or like to eat plant seeds, including immature or mature seeds that have not fallen off and have fallen to the ground, and can even damage peanuts stored in warehouses. Due to its small size, hidden life, and difficult to be discovered, the harm to agriculture, animal husbandry and forestry is often ignored by people.

In addition, a small number of taxa are predatory, preying on small insects such as aphids. There are still a few species that are blood-sucking and feed on the blood of burrowing mammals.

Bugs are mostly found on plants or crawling on the surface, the former are mostly on herbaceous plants or shrubs, and relatively few are insects living on trees, and these species often burrow into the cracked capsule or open cones to suck the seeds in them. Surface life species account for a considerable number of species, crawling in the ground cover, foraging for seeds that have fallen to the ground, moving quickly, with good protective color, and often not easy to find.