The basic species of locusts, the main characteristics of locusts?

Locusts are characterized by a body that is usually green, gray, brown, or black-brown, with a large head and short antennae; The dorsal plate of the anterior thorax is stiff and extends to the left and right sides like a saddle plate, and the middle and posterior thorax heal and cannot be moved. The feet are well developed, especially the muscles of the hind legs are strong and powerful, and the exoskeleton is strong.

Hard, shins with sharp saw spikes, effective defense**.

The body surface of the locust has a hard exoskeleton, and its main role is to protect and support the soft internal organs and prevent the evaporation and loss of water in the body, which is one of the characteristics of adapting to life on land. The exoskeleton cannot grow with the growth of the locust's body, so in the process of locust growth and development, there is a phenomenon of shedding the original exoskeleton, which is molting.

Locusts have the characteristics of strong reproductive ability, large appetite, rapid growth, good at flying and living in swarms, and also have chewing and sucking mouthparts, which can quickly cut off and chew plant stems and leaves, which are also the reasons why locusts are seriously harmful and easy to become plagues.

Forefoot and midfoot – walking, hindfoot – jumping.

Two pairs of wings are leathery with forewings, and the hindwings are membranous. Forewings - protection, hindwings - flight.

The well-developed feet and wings make the locusts fly and jump well, expanding the range of locusts.

The antennae are filamentous antennae, and the segments of the whip are slender and have no special changes.

The antennae give the locust a keen sense of smell, giving it a wide range of feeding habits.

1. The body length of the male adult locust is millimeter, and the female adult is millimeter long. The body is usually green or yellowish-brown in color, and often varies due to environmental factors. The face is vertical, and the antennae are pale yellow.

The dorsal plate of the prothorax is well developed, the scattered type is slightly curved when viewed from the side, the group type is slightly concave, and there are often dark longitudinal stripes on both sides. The forewings are narrow and long, often extending beyond the middle of the tibial segment of the hind foot, with brown and dark markings, and the group type is darker. The hindwings are colorless and transparent.

The social form sometimes has 2 inconspicuous dark streaks on the upper side of the hind leg segments, and the dispersed form is often absent or inconspicuous. The hind tibial joints are usually orange-red.

The group type is slightly lighter, usually with 10 11 spines along the outer margin.

2. Locusts generally belong to facultative diapause insects, mostly overwintering in oocysts in the soil with eggs, and only a few species such as Japanese yellow-ridged locust and short-legged locust overwinter as adults. The number of generations that occur in one year depends on the biological characteristics of the species and the annual effective accumulated temperature, food, light exposure and growth and development of each insect stage in different regions. For example, the Asian locust occurs in one generation in one year in China's distribution area.

East Asian locusts. In China, the middle and lower reaches of the Yangtze River and its northern distribution areas are the second generation, and the Yangtze River and Huaihe River basins.

in high temperature and drought years, it is 3 generations or incomplete 3 generations; South.

4 5 generations. The Chinese rice locust has 1 generation in the Yangtze River and its northern areas, and the 2nd generation in the south of the Yangtze River.

Locusts are very harmful insects that can cause great damage to crops. Although locusts are a general generalization, there are actually many different kinds of locusts, and they have certain differences in ecological environment, behavioral habits, and harmful methods. Let's take a look at the types of locusts.

There are many types of locusts, which can be roughly divided into three categories: grassland locusts, desert locusts and forest locusts. Among them, grassland locusts are mainly distributed in northwest China, mainly inhabiting grasslands and desert areas, among which Tibetan locusts and fall armyworm belong to common grassland locusts. Desert locusts mainly live in the arid regions of northwest China, such as the desert and the Gobi, among which the dragon locust and the Malu locust are the most well-known.

Forest-type locusts are mainly distributed in the south and southwest of China, mainly inhabiting forests, mountains and watersides, among which Asian fireflies, aphid fireflies and legged grasshoppers belong to forest-type locusts.

Locusts are insects that are very adaptable to their environment, they can quickly adapt to their new environment and reproduce and survive. The species and abundance of locusts vary from one ecology to another. Of course, no matter which category they belong to, the damage to agriculture and the ecological environment is enormous, and the source is often caused by large-scale losses.

For the prevention and control of locusts, targeted measures should be taken according to different types of locusts to carry out precise control.

In practice, we can also adopt some scientific and technological means to control the number of locusts, such as the use of insect traps, reduced farming methods, the use of chemical agents and other ways to control the number of locusts, and at the same time carry out comprehensive management to increase the number of other natural enemies in the ecological environment and ensure ecological balance. In short, locust control is a long-term and important task that requires comprehensive measures to ensure sustainable agricultural and ecological development. <>

Locusts belong to the class of insects.

There are many kinds of insects with different forms; They can be found in almost every corner of the world. For example, the most common are locusts, butterflies, bees, dragonflies, flies, grasshoppers, cockroaches. Wait.

Locusts are a subset of insects in the class Insectidae Orthoptera.