Cockroach or cloth beetle? What is a nymph of a cockroach?

It's not a cockroach, it's a cloth beetle. The tentacles of cockroaches are long, thin, and unsegmented.

Not cockroaches, cockroaches have smaller heads and no necks.

This is the nymph of the cockroach, that is, the juvenile cockroach.

Cockroaches prefer hot, dark and damp places, so be careful in water sources, well-served kitchens, dining rooms, bathrooms, drains, trash cans, etc. Small cockroaches can burrow into millimeter-thick cracks. Adult male cockroaches can burrow into millimeter crevices.

Female cockroaches with eggs need to hide in places a millimeter or two coins thick, especially in small and tight gaps, such as gaps between furniture, any gap larger than a centimeter, is a habitat for cockroaches. Where paper bags, boxes, and corrugated paper are piled up, cockroach nests can also be built. Some people pile books, newspapers, magazines or cardboard boxes next to the refrigerator, and the humid and warm refrigerator is a cockroach breeding ground, and these cardboard boxes become the best space for cockroach activities.

Cockroach nests are usually found in work rooms, laundry rooms, heating boxes, behind televisions, computers, refrigerators, and in kitchens and sewer pipes. In order to completely eradicate cockroaches, it is necessary to find a nest and destroy the eggs. You must know that an average cockroach can reproduce tens of thousands after half a year!

In order to get rid of cockroaches, you have to do the following:

a.Cleaning up garbage and unused items, especially books, newspapers and magazines at home;

b.inspect underneath and behind furniture, as well as hidden areas such as ceilings, air grooves, and wiring ducts;

c.Fill in cracks and crevices in ceilings, walls and floors with non-insulating materials for optimal sealing.

d.All cockroach remains and egg sheaths must be crushed and removed, so as to prevent the egg sheath from hatching and continuing to cause trouble. (1: For the egg sheath must be burned 2: Flushed into the sewer).

e.Furniture should try to avoid the use of plywood or ceiling walls, but should choose aluminum, stainless steel, plastic and other materials of furniture, which is easy to rinse, but also has no thermal insulation effect, cockroaches are not easy to survive. It is best to have a large separation between the furniture and the wall, so that it is not easy to hide cockroaches.

Biological control is an effective way to eliminate cockroaches, and the natural enemies of cockroaches are spiders, scorpions, centipedes, ants, toads, lizards, geckos, etc. There is a bird: cucarachero (scientific name troglodytes audax), which also preys on cockroaches.

In addition, cats, monkeys and rats also prey on cockroaches and are the natural enemies of cockroaches.

Cockroaches are a type of insect.

Details: The body of cockroaches is divided into three parts: head, thorax and abdomen. It has 2 pairs of wings and 6 legs, the wings and feet are located on the thorax, and the body is made up of a series of body segments, which are further assembled into 3 segments (head, thorax and abdomen). A pair of antennae are born on the head, and the bones are encased in the outside of the body.

Conclusion: These characteristics of cockroaches coincide with all the characteristics of insects, so it can be seen that cockroaches are an insect.

Circadian rhythm: Cockroaches are diurnal and nocturnal, showing a distinct circadian activity rhythm. It has been observed that the German cockroach starts to be active at 19 o'clock, with a peak of activity from 21 to 22 o'clock, a small peak at 2 o'clock in the next morning, and a disappearance at 5 o'clock.

The black-breasted cockroach starts its activity at 7 p.m., peaks at 8 p.m., and has two smaller peaks at 23 p.m. and 2 a.m. the next morning, and ends at 4 a.m. It has been observed that the activity of the American cockroach in the 12-hour alternating environment of day and night can be divided into six periods.

<> scarab beetle is generally referred to as dung beetle, a different name for the same creature. There are more than 20,000 species of dung beetles in the world, distributed on any continent except Antarctica, dung beetles can use the phenomenon of moonlight polarization to locate to help feed, and have a certain phototaxis.

This one isn't.

2. The egg sheath of the cockroach is in the shape of a capsule on the ground, and the egg sheath can hatch out of the larvae in about 28-40 days at a temperature of 25 and a relative temperature of 60-80%.

3. The cockroach eggs are narrow and elongated, milky white, translucent, and neatly arranged in two rows in the egg sheath. The head of the embryo is slit towards the hole. When hatching, the nymph pushes upwards, causing the closed egg sheath to crack open and escape, much like the shell sheath open, which is also the origin of the "egg sheath".

4. The number of eggs in the egg sheath varies depending on the species, that is, the number of eggs in the egg sheath of the same cockroach can also vary depending on the environmental conditions and the number of eggs, ranging from a few grains to more than 50 grains.

5. The nymphs newly hatched from the German cockroach are milky white and have no wings, and gradually turn dark brown after a few hours. The nymphs have to molt 3-4 times before they can see the wing buds.