The head antennae, tentacles, tail whiskers on the abdomen and receptors on the legs of locusts can feel touch. The taste organ is in the mouth, and the olfactory organ is on the antenna. There are eardrums on both sides of the first abdominal segment or at the base of the tibiofibular segment of the forefoot, which are in charge of hearing. The compound eye is responsible for vision and the single eye is responsible for light perception. The hind legs are thick and suitable for jumping. Male insects make sounds by rubbing the left and right wings or rubbing the convex veins of the front wings with the sound file of the hind leg joint. Some species can also pronounce when flying. Different habitats, such as Marelliaremipes in South America, spend most of their lives on floating plants, swimming and laying eggs on aquatic plants. Medium or large in size, and some species (such as south American Brazilian drainage locust Tropidacrislatriellei) are over 1 1 cm in length. People in some areas feed on locusts. The natural enemies of locusts are birds, birds, frogs and snakes, and humans also catch them in large quantities. The whole body is usually green, gray, brown or dark brown, with a big head and short tentacles; The front chest backboard is hard, extending to the left and right like a saddle, and the middle chest and the back chest can't move when they heal. The foot is developed, especially the hind legs are muscular, and the exoskeleton is hard. He is an expert in jumping, and the tibia has a sharp saw, which is an effective defensive weapon. The ovipositor has no obvious protrusion, which is the biggest difference between it and the owl. In addition to tentacles, the head also has a pair of compound eyes, which are the main visual organs. There are three monocular eyes at the same time, which can only be sensitive. There are mouthparts under the head, which are the feeding organs of locusts. The mouthparts of grasshoppers are composed of upper lip (1 piece), upper jaw (1 piece), tongue (1 piece), lower jaw (1 piece) and lower lip (1 piece). Its upper jaw is hard and suitable for chewing, so this mouthpiece is called chewing mouthpiece. On both sides of the first section of the abdomen of locusts, there are a pair of half-moon membranes, which are the auditory organs of locusts. A row of small holes arranged neatly on the left and right sides is the valve. From the middle chest to the eighth abdominal segment, each segment has a pair of valves, with a total of 10 pairs. Each valve communicates inward with the trachea. Grasshoppers have trachea with different thickness, which branches again and again, and finally contact with each cell with tiny branches to breathe. Therefore, the valve is the gateway for gas to enter and leave the locust body. Feeding habit: phytophagy. I like to eat plump leaves, such as sweet potatoes, water spinach and Chinese cabbage. Growth and development: incomplete metamorphosis.