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Yes.
In order for the eggs in the stomach to have enough nutritional development and give birth to more baby praying mantises, because the male is useless after mating, ready-made food can supplement nutrition, if you don't eat the male, you have to find other food, you may not get it, in case there is no food, then the birth of the next generation will be affected, so the female praying mantis will eat the male after mating.
Characteristics of cockroaches.
One of the characteristics of the cockroach life history is the long cycle. The German cockroach with the shortest cycle.
In general, it takes more than 2 months to complete a generation, and the longest American cockroach.
It took more than 1 year. The length of life history varies not only from species to species, but also with different conditions such as temperature, nutrition, etc.
The adult worm also has a long lifespan, the shortest German cockroach is about 100 days, and the longest-lived American cockroach can survive for up to 1 year. The length of life also varies depending on the type and environmental conditions.
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This question should depend on whether this pair is a real couple, if so, the male cockroach will be eaten by his wife after completing the task on the wedding night, know that there is a kind of spider is also like this?
Not only praying mantises, but also many species in the phylum Arthropoda have brides who cook their husbands for delicious meals, such as many species of spiders that everyone is familiar with. Female praying mantis needs to take in and supplement a large amount of protein to reproduce offspring, and the most convenient way to obtain usable protein is to eat their groom, which is more complicated, involving behavior, pheromones (note not sex pheromones), which is a reproductive strategy, and is the result of natural selection in the long-term evolution of this group of species.
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Brother upstairs, LZ asked if it was a cockroach or a praying mantis.
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It's hard to say, it depends on whether it's really hungry.
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Cockroaches are divided into male and female.
Cockroaches are a kind of dioecious insects, that is to say, cockroaches are divided into male and female, as for the simple and effective way to distinguish their male and female, that is to look at its tail end, the male cockroach has two pairs of appendages at its tail end, these two pairs of shapes are different, there is a pair of segmented tail whiskers, and a pair of abdominal spines, as for the female is completely different from the male, that is to say, they only have one pair, and there is no male to grow this tail whisker.
Differences in body type. Male cockroaches and female cockroaches are completely different in size, males will be weaker and more slender in comparison, and feel not particularly fat, while females are just the opposite, it is particularly hypertrophied, especially wider.
Another point is that there are some special species of males, their wings may be more developed and long, or even directly cover the tail end, but in comparison, females do not seem to be so developed, their wings only reach the front half of the abdomen, as for the second half of the wings at all.
Therefore, cockroaches are not the same sex as we ordinary people think, cockroaches are also male and female, if you want to distinguish them, you can easily distinguish them from the above two aspects.
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Look at the tail end of the cockroach: Sexual cockroaches have two pairs of appendages at the end of their tails, these two pairs are different in shape, one pair is a segmented tail whisker, and the other pair is a ventral spine, the female is completely different from the male, they have only one pair, there is no male tail whiskers.
Differences in body type. Males are weaker and have a more slender body and are not particularly fat, while females are particularly fat and have a wider body.
Wings:Male cockroaches have well-developed wings that extend to the tail end, but females have wings that cover only the front half of their abdomen, or are wingless.
Precautions for cockroach extermination.
Cockroaches are a pest with huge bacteria, cockroach medicine is effective for them, in addition, you can also use tung oil cockroach catching method, sugar water bottle cockroach catching method, and call a professional cockroach removal company to remove them.
Cockroaches often hide in dark, damp corners of kitchens, pantry, feed banks, bathrooms, and other dark and damp corners that we don't notice. It not only harms stored items such as grain, oil, food, clothing and books, but also spreads diseases and causes harm to people. And cockroaches are very fecund, and a dead cockroach can secrete eggs to continue to reproduce.
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Usually when they are breeding, as long as it is a female cockroach, almost seven to ten days apart, it can produce a lot of eggs, and then it takes about a month or so to hatch, if the temperature is relatively high, then the time will be effectively shortened. What's more, even if there is no male cockroach and it is in a very extreme environment, as long as it has mated once, then it can lay eggs, and then it can be hermaphroditic and lay a lot of eggs in a row.
The tail end of the male cockroach has two pairs of appendages, one pair of segmented tail whiskers, and one pair of tiny needle processes (ventral spines). Female cockroaches have only one pair of appendages at the tail end, that is, tail whiskers, without needles. Male cockroaches are generally thin and elongated, while female cockroaches are thick and wide.
If you want to get rid of cockroaches quickly and effectively, you can start by squeezing some laundry detergent where they are frequented, so that it can have a good effect. Mainly because the laundry detergent is alkaline, even if the surface of the cockroach is weakly acidic, and there are several small holes on its abdomen, if it touches the laundry detergent, then it will not be able to breathe better, and it will die in a short time.
Or prepare the soap first, then soak it in hot water, then put it in a bottle, and finally spray it on the cockroaches, the effect of this is also very good, but it will be a little hard to do, after all, there are more cockroaches, and it will be a little troublesome to clean up.
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The x-dorsal plate of the abdomen of male and female cockroaches is called the supraanal plate, and 1 pair of multi-segmented tail whiskers grow on both sides of its base. The VII web of female cockroaches and the 1x web of male cockroaches are called the inferior genital plate. Male cockroaches have one pair of needles (ventral spines) on both sides of the end of the lower genital plate, which is an important feature to distinguish adults from both sexes.
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Cockroaches reproduce unisexually and are not divided into male and female.
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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, you can see the fertility of cockroaches and their severity The x-th dorsal plate of the abdomen of male and female insects is called the supraanal plate, and there are 1 pair of multi-segmented tail whiskers on both sides of its base. The VII web of females and the 1x web of males are called inferior genital plates.
The male has one pair of needles (ventral spines) on both sides of the end of the lower genital plate, which is an important feature to distinguish between sexually important adults.
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<> cockroaches are divided into male and female, how to distinguish between female and male cockroaches: 1. Male cockroaches are long and narrow in appearance, thin and small abdominal segments, wings beyond the tail end, and the number of male insects in the winter and spring (December to April of the following year) is more than that of female insects in the winter and spring when the temperature is low, and the male insects generally have a shorter lifespan than the female insects. Female cockroaches are stout in appearance, hypertrophied abdominal segments, obtuse and rounded ventral tail, and nymphs hatching from the same egg pod with wings near the caudal end.
After emergence, the females are twice as large as the males, so there are more females than males from May to November.
2. The tail end of the male cockroach has two pairs of appendages, one pair is segmented tail whiskers, and there is also a pair of small needle processes (ventral spines); Female cockroaches have only one pair of appendages at the tail end, that is, tail whiskers, without needles.
3. The body shape of male cockroaches is generally thin and slender, while female cockroaches are thick and wide. In a few species, males have well-developed wings that extend to the tail end, but females have wings that cover only the front half of the abdomen, or are wingless.
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How is it possible for cockroaches to lay eggs in both male and female? That's supposed to be the female cockroach laying eggs, aren't all animals like this? They are all females and males, how can they lay eggs?
If the male also lays eggs, then what kind of male and female are there? Isn't that one of a kind?
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Unmated females can also lay egg sheaths, but cannot hatch nymphs. Only the egg sheaths produced by the female cockroaches after mating will hatch nymphs.
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Cockroaches are hermaphroditic dioecious adults, and their external morphology is easily distinguishable.
1: Male cockroaches have two pairs of appendages at the end of their tails, a pair of segmented tail hairs, and a pair of tiny needles (ventral spines); Female cockroaches have only a pair of appendages, tail whiskers, at the end of their tail, and no needles.
2: Males are usually very thin, thin and slim, while females are thick and wide.
3: In some species, male cockroaches have well-developed wings that extend to their tails, while female cockroaches have wings that cover only the front half of their abdomen, or no wings.
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Cockroaches generally refer to insects of the order of cockroaches, belonging to arthropods, although there will be slight differences according to their species, but most of the cockroaches are about the same, the body is flattened, black-brown, the head is small, can move and have antennae, the body has wings, mainly covering the back of the abdomen, some species will also have no wings, is not good at flying, more good at walking insects.
It was the cockroach that asked.
Whether it's female or male.
Question: How do you get rid of it?
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Cockroaches are a kind of dioecious insects, that is to say, cockroaches are divided into male and female, as for the simple and effective way to distinguish their male and female, that is to look at its tail end, the male cockroach has two pairs of appendages at its tail end, these two pairs of shapes are different, there is a pair of segmented tail whiskers, and a pair of abdominal spines, as for the female is completely different from the male, that is to say, they only have one pair, and there is no male to grow this tail whisker.
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The last segment of the abdomen is particularly wide in females and narrow in males. Cockroaches are universal.
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The one with a big round belly is the one who has a small belly.
The male has long tentacles and a slender body.
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The one who has wings is female, and the one without wings is male!
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Cockroaches are dioecious, and male and female adults can be easily distinguished by their external morphology: male cockroaches have two pairs of appendages at the tail end, one pair of segmented tail whiskers, and a pair of tiny needles; Female cockroaches have only one pair of appendages at the tail end, that is, tail whiskers, without needles.
Male cockroaches are generally thin and slender in shape, while female cockroaches are thick and wide, in a few species, male cockroaches have well-developed wings that extend to the tail end, but female cockroaches have wings that only cover the front half of the abdomen, or no wings.
Characteristics of cockroaches.
The reproduction of cockroaches is a combination of sexual reproduction and asexual reproduction. Every 7-10 days, a mature female cockroach can lay an egg sheath containing 14-40 eggs, which are colloidal and hatch between 20-37.
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, female cockroaches can also lay eggs. That is to say, many female cockroaches will be hermaphroditic after mating once, and they can lay eggs continuously without mating.
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Yes.
Male cockroaches are long and narrow in appearance, thin and small abdominal segments, wings extend beyond the tail end, and the number of male insects is more than that of female insects in winter and spring (December to April) when the temperature is low, and the male insects generally have a shorter lifespan than the female insects. The female cockroach has a stout appearance, hypertrophy of the abdominal segment, a blunt and round ventral tail, and a wing near the tail end, after the nymphs hatched from the same egg pod emerge, the female is twice that of the male, so there are more females than males from May to November.
Habits of cockroaches.
The reproduction of cockroaches is a combination of sexual reproduction and asexual reproduction. Every 7 to 10 days, a mature female cockroach can produce an egg sheath containing 14 to 40 eggs, which are glioidal and hatch 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, female cockroaches can also lay eggs.
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