In the YL family (also known as "real") are insects related to shrubs and, further afield, to Tetrix. The YL family mainly has cylinder, round head and long antennae. Behind the head is a smooth, strong anterior pleura. There is a long sting at the end of the abdomen. The female has a long cylindrical ovipositor. The femur of the hind leg is enlarged (thigh) to power the jump. The front wing adapts to strong, leathery winglets (wing covers), some honking by rubbing parts of them together. The rear wing is membranous and folded when not in flight. However, many species cannot fly. The largest member of the family is dOuchy, which is about 5 cm (2 inches) long.

More than 900 categories are described. Gryllidae is distributed all over the world, except for areas with latitude of 55 ° or higher, the most of which is tropical. They are found in a variety of habitats, from grasslands, shrubs and forests to swamps, beaches and caves. Mainly is primarily nocturnal and is known for loud, persistent, Chi songs that males try to attract females, although some species are silent. Through the tympanic membrane (tympanic membrane) on the tibia of the front leg, singing species have good hearing.

Literature often appears as characters in literature. The adventures of Pinocchio, a children's book published by Carlo Collodi in 1883, and the films adapted from the book all have cricket that can speak. The insect of the same name was at the heart of Charles Dickens's "Cricket on the heart" in 1845, as was the sound of George Selden's "the cricket" in 1960. William Wordsworth, John Keats and Du Fu celebrated cricket with poems. From China to Europe, they are kept as pets, sometimes for cricket. S can effectively transform food into body weight, thus becoming a candidate for food production. They are used as food in Southeast Asia and fried as snacks on the market. They are also used to feed meat pets and zoo animals. In Brazilian folklore, cricket is a harbinger of events.

The disease is small to medium-sized insects, most of them are cylindrical, some of them are vertical flat bodies. The head is spherical, with long, elongated antennae, formed by cone-shaped flowers (the first part), followed by two large compound eyes. There are three light Browns on the forehead. The front chest back plate (the first section of the thorax) is trapezoid, strong and well hardened. It is smooth and has no back keel or side keel (ridge).

In females, the ovipositor is cylindrical, long and narrow, smooth and shiny. The femur (third section) of the hind leg is greatly enlarged and can jump. The tibia (fourth section) of the hind leg is equipped with many movable spurs, which are arranged in a way that is characteristic of each species. The tibia of the foreleg has one or more tympanic membranes for receiving sound.

With wings lying flat on the body, the size of the species varies greatly, with some of them decreasing and others decreasing. The Coleoptera, which is made of hard chitin, serves as a protective shield for the soft part of the body. In males, it is responsible for the vibrating organ that produces sound. The posterior pair is membranous and fan-shaped under the front wing. In many species, wings are unsuitable for flight.

The largest member of the family is a 5cm (2-inch) long male bull (Brachytrupes), which can dig a meter or deeper cave. Oecanthinae is a delicate white or light green insect with transparent front wings, while the gryllinae is a solid brown or black insect.