What are the types of crickets? What are their characteristics?

About 2500 species are known in the world and about 150 species are known in China, including 50 species in Taiwan Province. (In addition, the data here is questionable: there are more than 1,400 species that have been named in the world, and more than 30 species that have been named in China.) ）

Common crickets are:

Chinese cricket (Gryllus chi-nensis). The body is about 2 cm long and black-brown. It grows for 1 generation per year and overwinters in the soil with eggs.

The male articulator is near the base of the forewings and is pronounced by wing rubbing. The auditory device is located on the tibial joint of the forefoot. Burrowing, often in the underground, ground or masonry crevices, for the damage to plant roots, stems, leaves, seeds and fruits, etc., more than nocturnal feeding, biting the tender part of the plant near the ground, resulting in lack of seedlings, is an agricultural pest.

large coffin-headed cricket (Loxoblemmus doenitzi), head flattened, anterior flat, sloping forward, male head prominently protruding to the sides;

Oil gourd (Gryllus testaceus), the body is dark black and shiny, with yellow stripes on the inner upper part of the two compound eyes, reaching to the back of the head. The forewings are pale brown and also shiny, the hindwings are more developed, and the female ovipositor is up to 2 cm long. Foraging at night, adults and nymphs are harmful to soybeans, sorghum, peanuts, melons, vegetables and other crops.

It is mostly distributed in all provinces of the country.

The appearance of the cricket in "The Book of Insects" is as follows:

The body color of crickets varies greatly, mostly yellow-brown to black-brown, or green, yellow, etc., the head is round, the chest is wide, the antennae are filamentous and longer than the body, the antennal stalks are mostly round shield-shaped, chewing mouthparts, the ovipositor is exposed, needle-like or spear-shaped, the forefoot and the middle foot are similar and long, and the hindfoot is developed and good at jumping.

The characteristics of life are as follows:Crickets are withdrawn by nature, and generally live independently, and are never allowed to live with other crickets. It is only during the breeding and mating period that the male cricket cohabits with another female cricket.

Otherwise they are incompatible with each other. If they bump into each other, they will not hesitate to bite and fight. Therefore, there is a folk activity of fighting crickets.

Cricket Catching Principles.

1. Catch the crickets after they are sexually mature, and let the crickets leave offspring in nature as much as possible, so the capture time should not be too early.

2. Catch adults, keep nymphs, catch males, keep females, be merciful to unwanted crickets, release them on the spot, and don't kill them for no reason.

3. The number of catches should be controlled, and sweeping captures must not be carried out, especially in the same place, for rare species, a certain number of wild populations should be maintained.

The head is round, the chest is broad, and the antennae are slender. Chewing mouthparts. Some have large jaws that are well developed and stronger than bites.

3 pairs of tarsal joints of each foot, with similar forefoot and midfoot and same length; The hind feet are well developed and good at jumping; Auditory apparatus on the tibial joints of the forefoot, lateral to greater medial.

The oviposis is exposed, needle-shaped or spear-shaped, and consists of 2 pairs of tube flaps. Both male and female have 1 pair of tail hairs on the ventral ends. Males have 1 pair of short rod-shaped ventral spines at the ventral end.

Females are larger, with needle- or spear-like ovipositor tubes bare and small wings. Male insects have articulators on their forewings, which consist of scrapings on the wing veins, rubbing veins, and articulatory mirrors. The forewings are raised and rubbed from side to side, thus vibrating the articulation mirror and producing tones.

The body color is mostly dark brown, and the body is mostly barrel-shaped, with thick hind legs and filamentous antennae longer than the body. There are two long tail filaments at the end of the abdomen, and if it is a female, there is also an oviposition tube longer than the tail filament, and there is another way to distinguish between male and female, the male with obvious concave and convex patterns on the wings, and the female with straight wing lines. Most peculiarly, his hearing device is on the forefoot segment.

The difference with locusts and mantises.

Crickets, locusts, and mantis are all orthoptera insects, and the gnats refer to the mantis, and the crickets refer to the crickets, but there are still differences in the posture:

1. Locusts have the shortest antennae, and mantis have longer antennae than crickets. The antennae of the mantis are even longer than the body.

2. Crickets and mantis rely on the friction of their wings to make sounds. But the right wing of the cricket is stacked on the left wing, and the left wing of the mantis is often stacked on the top of the right wing. Locusts rub their hind legs against their wings to make sounds.

3. Locusts and mantis live in grasslands and grasses, with two species, green and brown, and crickets live among the gravels on the ground, and their color tends to be dark brown.