CATDOLL : CATDOLL: Mating of adult lepidoptera

1. Mating of adult Lepidoptera

The main tasks of adults are to choose a mate, mate, lay eggs, and reproduce. Some insects have degenerated feeding organs when they reach adulthood, and they no longer feed. The reproductive functions of male and female insects are fully mature, and they die after mating and laying eggs. Some insects, after emerging from adulthood, still need to feed a lot to complete the task of reproducing offspring. These species tend to have a longer lifespan.

Different insect species have different ways of mating. Usually, there are the following: (1) Male insects fly in groups to attract female insects for mating, such as mosquitoes; (2) Male insects chirp to attract female insects, such as cicadas, katydids, locusts, etc.; (3) Female insects use light organs to attract male insects, such as fireflies; (4) Female insects can release sex pheromones to attract male insects with their smell, such as silkworm moths. For some moths, as long as the female insects secrete extremely small amounts of sex pheromones, about one billionth of a gram, male insects from thousands of meters away will smell the scent. Insect mating is also a very interesting phenomenon. When mating, chironomids and many types of blood-sucking mosquitoes fly in groups, that is, a large number of male insects fly in groups in the air. Once the female insects are caught in the dance circle, they are caught by the male insects and mate. The silkworm, which belongs to the order Lepidoptera, although the larvae are very gluttonous, the adult insects no longer eat after emerging from the silk cocoon. At this time, the sperm and eggs of the adult insects are fully mature, and the end of the abdomen of the female insects can release sex pheromones. The male insects can find their partners for marriage by smell. They mate in a straight line, with the ends of the abdomens of the male and female insects connected, and their heads facing different directions. After mating and laying eggs, the adults die one after another. The reproduction method of locusts belonging to the order Orthoptera is different from that of silkworms. They undergo the last molting and become adults. At this time, the reproductive function of the adults is not yet mature, and they still need to rely on a large amount of food for further development. After the adults mature sexually, their activity increases, and they often fly together to find a partner. Therefore, at this time, the phenomenon of adult insects often occurs in spots and patches, and sometimes large groups migrate. Male insects usually mature sexually a few days earlier than female insects. They are smaller in body but very active. Male insects attract female insects by making sounds through friction, and then climb onto the back of female insects for mating. Female insects can mate many times in their lifetime. The mating of dragonflies is also very unique, and they mate in pairs while flying in the air. The male insect's copulatory organ is not at the end of the abdomen, but on the ventral surface of the second abdominal segment. During mating, the male insect uses its claspers to hold the female insect's chest, and the female insect bends its abdomen forward to allow the genital opening to engage with the male insect's genital organ on the second abdominal segment. The mating of mantises often has a "tragic" color. They are carnivorous insects and often have special feeding behaviors during mating. When the mating activity reaches its climax, the female insect often suddenly bites off the male insect's head as food. The occurrence of this "tragedy" is actually beneficial to the male insect's enhancement of sexual vitality to ensure the completion of fertilization and reproduction of offspring. Because the male insect's head is removed, the inhibitory effect of the male insect's brain on the mating center is objectively released, thereby enhancing sexual vitality.

2. Do locusts reproduce by eggs? As the title says. Thank you.

Yes. Locusts lay their eggs in the soil. The soil is relatively firm and has a moisture content of 10% to 20%, which is the best time for them to lay eggs.

Definition of Oviparity The process of an animal's fertilized egg developing independently outside the mother's body is called oviparity. The characteristic of oviparity is that during embryonic development, the yolk contained in the egg itself is used as nutrition. Oviparity is very common in animals. Except for some mammals (platypus, echidna), other types of animals have oviparous species. In the process of oviparity, oviparous animals expel eggs or fertilized eggs from the body, or bury them in soil and sand (such as locusts, turtles, some snakes, etc.), or leave them in the gaps of tree bark (such as cicadas), or in water (such as fish, frogs, etc.), and then gather the radiant heat of the sun to develop and hatch into larvae or young.

3. How do locusts reproduce?

Locusts reproduce by laying eggs.

4. The reproduction and development process of locusts is

Answer A

Locusts develop through incomplete metamorphosis, going through three stages: egg, nymph and adult.

5. What are the reproduction and development processes of locusts and mosquitoes?

Locusts are fertilized internally and develop externally. Their life cycle mainly goes through three stages: fertilized eggs (mainly rely on the yolk in the egg to maintain life), larvae (mainly eat grass plants for survival), and adults (also eat grass plants like larvae). Mosquitoes are also fertilized internally and develop externally. Their life cycle mainly goes through four stages: fertilized eggs (mainly rely on the yolk in the egg to maintain life). The first step is the same as that of locusts, but there is one difference. Locusts lay eggs in the soil, while mosquitoes lay eggs in water. The two are different. Larvae (mainly eat plankton in the water and breathe to obtain energy), pupae (do not eat or drink), and adults (male mosquitoes mainly drink the juice of green plants, while female mosquitoes dilute the blood of mammals to maintain life for the eggs in their abdomens.

6. Reproduction and development of locusts and mosquitoes

Locust: Incomplete metamorphosis, sexual reproduction, only three stages in life: egg-nymph (locust hopper)-adult, herbivorous, adults lay eggs in the soil. Orthoptera insects.

Mosquito: Complete metamorphosis, sexual reproduction, four stages in life: egg-larva (larvae)-pupa-adult, carnivorous or herbivorous, adults lay eggs in water. Diptera insects.