Bata: Orthoptera Caelifera

Locust is a general term for nimalia Arthropoda Insecta Orthoptera Caelifera. In the family along with Pyrgomorphidae Acrididae Tetrigidae and so.

Locusta migratoria

They hop along because their hind legs are well developed and they have ala. The front ala is thin and opaque, while the hind ala is thick and clear. Total length is about 35mm ~ 65mm and body color is protectively colored green and brown. This color matches with their habitat, but, in high population density, it becomes a blackish color.

They live in dry grassy areas in the Tropic and Temperate zones. Like the Katydids and the cricket, it is an Orthoptera and has a similar form but is actually quite different. Compared with the Katydids and the cricket, the locust’s rearing environment is an arid zone, short plants and open ground. Other example, the locust’s body is long in front and behind, ear in the chest, the female’s ovipositor isn’t long, and most of the kinds female is bigger than male.

They are incomplete metamorphosis. (Egg – larva – Imago) Eggs is laid in shallow earth. When larva. they have no ala but as imagoes develop ala, females get an ovipositor. In Japan, imagoes die in winter so, eggs stay over the winter.

Migratory locust often cause severe damage to agricultural areas. The plural locust is called Migratory. They are often locust plague and eat a lot of grass. No grass land cause many disaster. These past few years, it aren’t many examples like this in Japan because of agricultural chemicals and breeding environment’s destruction.

There arre about 5,500 kinds of locust in the world, and about 445 kinds of locust in Japan. Locusta migratoria, length about 40mm ~ 70mm, body color is green or brown and, live in grassland. Gastrimargus marmoratus, length about 40mm ~ 60mm, body color is green or brown and, black markings for its hind leg. The Acrida cinerea, lengths is about 50mm ~ 80mm, there is a difference in female and male. For example, length (females are bigger than males), jump (females can’t jump so far), and male scan chirp.

We can see many locust every day, but don’t know well about them.

9 Comments

  1. I surpurised at there arre about 5,500 kinds of locust in the world, and about 445 kinds of locust in Japan. And I can understand body color is protectively colored green and brown. It is to protect its body. It is difficult for me to read this articles.
    But I can understand it a little.

    Like

  2. I was surprised at “There are about 5,500 kinds of locust in the world, and about 445 kinds of locust in Japan. ”
    I want to see many kind of locust.

    Like

  3. This article is very clear and easy for me to read it.
    There arre about 5,500 kinds of locust in the world.
    I was surprised to know it.

    Like

  4. I like grasshoppers, and I knew the name of various grasshoppers,but it was good to understand each small characteristic and habits of there.

    Like

  5. I knew them and have seen many times but did’nt know that, they female is bigger than male. I think that it is very interesting character, and want to look for they in this summer.

    Like

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