1, with different morphological characteristics.
Reptiles: adults 1-60 mm long, mostly black, and some groups are brightly colored; The head is slightly narrower than the front chest backboard; The lip seat is narrower than the antenna seat; Antenna 1 1 node, filiform; There is a groove on the outside of the base of the maxilla. COLEOPTERA wings are generally convex, with many engraved or tumor-like protrusions on the surface; The hind wings are generally developed, and the hind wings of terrestrial species are degraded, bringing about the healing of the left and right COLEOPTERA. The feet are slender and suitable for walking, and the forefoot and midfoot of some groups have evolved into characteristics suitable for excavation, with tarsal joints 5-5-5.
Cockroaches: Cockroaches are flat, dark brown and usually of medium size. Small head, move. Antennas are long and filiform, and compound eyes are developed. The wings are flat, the front wing is a sheath wing, and the rear wing is a membrane wing. The size of the front and rear wings is basically the same, covering the rear of the abdomen. Some species have no wings. Not good at flying, can run. Not completely perverted.
2. Different families, genera and species
Walking insects: COLEOPTERA, another name for Carabidae, there are about 20,000 species in the world.
Cockroach: generally refers to the "cockroach" (scientific name) insects, belonging to Arthropoda, Insecta, Cockroaches, commonly known as cockroaches, which are common medical insects. About 6000 species lay eggs in the egg sheath.
Ancient book records
In Shen Kuo's Meng Qian Bi Tan, there is a reference to walking insects.
The birth of Yuanfengli and Gyeongju Jiefangchong was Akita's injury. Suddenly, an insect, such as a dog and a scorpion, appeared in the soil, and its beak was covered with pliers. When you meet a bug, hit it with pliers, and it will be divided into two parts. Ten days have passed and I am getting older. This bug used to exist, and the natives called it "unwilling". (Selected from Insect Control)
Among them, "suddenly there is an insect, such as a dog and a scorpion, in the soil, whose beak has pliers and must cover the ground;" "Speaking of prescription, it is divided into two parts. It's about walking bugs.
Suddenly, an insect appeared, looking like a "dog and scorpion" in the soil, with pliers in its mouth, and thousands of them covered the land; When they meet slime molds, they fight them with pliers in their mouths, and all slime molds are bitten in half. Ten days later, all the slime worms were killed, and the annual harvest was bumper. Among them, the dog scorpion is the "newt".