Cockroach reproduction process, how cockroaches reproduce offspring

Cockroaches must have at least four basic conditions for reproduction: a warm climate; humid environment; Abundant food source and multi-crevice structure. Cockroach egg sheath is that after male and female cockroaches mate, the tail end of the female cockroach grows a pod-shaped thing called an egg sheath, and the eggs are laid in it.

A female worm can lay more than 10 eggs and more than 90 egg sheaths. In an egg sheath, 10 can be hatched, and more than 50 small cockroaches can be hatched, which is related to the cockroach species. Female cockroaches generally mate once in their lifetime, and each mating time is up to 2 hours, and they can reproduce for life.

Cockroaches reproduce in both sexual and asexual reproduction.

Most cockroaches reproduce sexually, but there are some parthenogenesis that do not require mating, or ovoviviparity that does not require mating.

Most cockroaches are mated by males and females to produce a fertilized egg that is used to reproduce offspring. Surinamese cockroaches are native to Southeast Asia and are also found in Taiwan, where they are usually hergonic and do not need to mate.

The scientific name of cockroach is cockroach, which belongs to the phylum Arthropod, Insecta, and Cockroach, commonly known as cockroach.

Cockroaches are dioecious animals that need to mate with males and females in order to reproduce.

Male and female adults are able to mate about a week after emergence. Males can mate many times in their lifetime, but females only mate 1 or 2 times, and a single mating will cause her to produce fertilized eggs for the rest of her life.

Females lay eggs inside special glial sacs, forming egg sheaths (egg pods). The egg sheath is produced by the secretion of the female, which is smooth, hard and waterproof, which protects the development of the embryo within it. The shape of the egg sheath, the number of egg sheaths laid by the female during her lifetime, and the number of eggs contained in them vary depending on the species, even the same cockroach can also vary depending on the environmental conditions and nutritional status.

Unmated females can also produce egg sheaths, but generally do not hatch larvae. However, some species such as the American cockroach and cane cockroach have parthenogenesis, that is, the female can produce fertile eggs without mating.

Egg sheaths produced by cockroaches.

Cockroaches are extremely reproductive, and a mature female cockroach can produce an egg sheath containing 14-40 eggs every 7-10 days, and its egg sheath is colloidal and hatches between 20 and 37. The higher the temperature, the shorter the incubation time, at a constant temperature of 30, only 20-30 days, and the long can be more than three months, a female cockroach can reproduce nearly 10,000 offspring a year, up to 100,000, in extreme conditions when there are no male cockroaches, so female cockroaches can also lay eggs.

Cockroaches can mate about a week after the adult emerges, and the male can mate many times in his life, but the female only mates 1 or 2 times, and can produce eggs for life after 1 mating and fertilization. Eggs are laid in the egg sheath, due to different insect species, the number of eggs laid is different, more than a dozen to dozens of eggs, more than 50, a fertilized female cockroach can reproduce 20,000 after a year, if you see a cockroach during the day, it is possible to hide hundreds in the gaps, which shows the fertility of cockroaches and their severity.

After the male and female cockroaches mate, the tail end of the female cockroach grows a pod-shaped thing called an egg sheath, and the eggs are laid in it. A female worm can lay more than 10 eggs and more than 90 egg sheaths. In one egg sheath, 10 can be hatched, and more than 50 small cockroaches can be hatched.

Cockroach reproduction requires at least four basic conditions: a warm climate, a humid environment, abundant food sources, and a crevice-prone structure. After the male and female cockroaches mate, the tail end of the female cockroach grows a pod-shaped thing called an egg sheath, and the eggs are laid in it.

A female worm can lay more than 10 eggs and more than 90 egg sheaths. In one egg sheath, 10 can be hatched, and more than 50 small cockroaches can be hatched. Female cockroaches mate once in their lives, and each mating time is up to 2 hours, and they can reproduce for life, even asexually.

Male and female cockroach adults can mate about a week after emergence. Females mate only once or twice in their lifetime, and only need to mate once, and females can produce fertilized eggs for the rest of their lives. Females lay eggs in special glial sacs, forming egg sheaths.

The egg sheath is produced by the secretion of the female worm and is smooth, hard and waterproof to protect the development of the embryo within. After 1-2 days after the female drags the egg sheath on the ventral end or lays the egg sheath, she chooses a relatively hidden place to hide the egg sheath. In one to two months, the baby cockroaches emerge from the egg sheath.

The larvae of cockroaches are usually elongated, milky white in color, and translucent.

The larvae of cockroaches resemble adults in shape, with small bodies and no wings. After the nymph molts for the last time, it grows wings and grows into an adult. Newly molted nymphs and newly emerged adults are also white, with a gradual darkening of color.

The morphology and living habits of larvae and adults are basically similar, but they are smaller in size, their sexual organs are not mature, they only have wing buds, and they cannot fly, but can only jump.

Circadian rhythm of cockroaches

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