What kind of insect is this? It looks like a scorpion. Really invincible, about 2 mm long. This was found in a hotel in Kunming. Can it suck human blood?

Straight-bellied scorpion is also called scorpion.

Scorpion: 1 order arachnida. This animal is named after its developed contact limbs, pincers at the end and scorpion-like bodies. Also known as Scorpion. But there are poisonous needles in the tailless hindquarters and caudal segments, which are obviously different from scorpions. Small, generally no more than 8 mm in length. Living in deciduous layers, soil, bark and stones, and in the nests of some mammals. A few live in caves, and some species of certain genera often live on aquatic plants and drift in intertidal zones. Some people live between the boards and pages of a building. Widely distributed all over the world, about 2000 species have been described. China recorded 24 species.

Distribution: Yunnan, Guizhou and Guangxi provinces (regions).

Main features:

Body length 2.8-3 mm, long oval, fawn; The beard is reddish brown and thick. (2) Both sides of the abdomen are straight, the backboard has 1 1 segment, the plate-like bone fragment at the base of the backboard is narrow, and the 4- 10 segment is a transverse rectangle. There are two hairs on the side of each plate-shaped bone fragment, and the seam in the middle is small. (3) The penultimate segment of the whisker limb is nearly spherical, and its length is shorter than the penultimate segment.

Discover websites:

Live in seclusion in a humid place with many booklice and mites. It is the main natural enemy of booklice and mites in warehouses.

Appearance characteristics:

The head and chest have a square or triangular carapace, and each front corner has 1 or two eyes (1 eyes forward, the second eye backward or upward, or disappears) or no eyes. There is no middle eye like a scorpion. There is no big chest plate on the ventral surface, which sometimes leaves traces. This area is mainly composed of basal ganglia of touching limbs and walking feet. The abdomen is oval and consists of 12 segments. Each part has a back plate and a web plate. 1 segment may heal with segment 2, and 12 segment degenerates into 1 segment. The genital hole is opened on the second net. The claw limb is divided into two sections: 1 section is the metacarpal joint, and the second section is the movable finger, which forms a clamp opposite to the fixed finger extending from the metacarpal joint. Movable fingers have ducts from 1 silk gland in the head and chest, and these ducts open on the upper side of the fingers. Usually, it doesn't open on the finger surface, but at the end of the angular protrusions, these protrusions are always called pockets. The inner edges of the movable finger and the fixed finger have comb-shaped teeth, which are called outer serrations and inner serrations respectively. The inner edge of the base of each claw limb has a cluster of short and thick hairs, which are called whiplike hairs. The contact limb is similar to a scorpion, but the palm or finger (1 or 2 fingers) has poisonous glands, which open at the 1 tooth end of the fingertip. There are still auditory hairs on the limbs. When walking slowly, lift the limbs you touch. If you are afraid, put it back on the shell and keep your body still. The first two pairs of feet are forward and the last two pairs of feet are backward. Generally, there are 7 joints: basal joint, rotor joint, front leg joint, leg joint, basal hock joint, hock joint and back hock joint, and there are claws and claw pads on the back hock joint. The biggest difference from other arachnids is that some legs are divided into two sections, and some tarsal bones are also divided into two sections, but there is no knee section. But some have no front legs and tarsal joints, and one has only six joints. Claw pads allow scorpions to climb on a vertical plane or on a smooth plane.

Hunting:

Fake corpses prey on small arthropods, such as collembola and mites. After they kill or paralyze their prey with the venom of their contact limbs, they tear off the skin of their prey with their claws so that the upper lip at the front end of their heads can reach into their prey. It secretes digestive juice into the body, digests the tissues of prey, and then inhales it into the body. Hair in front of the mouth blocks solid particles from entering the mouth. The whip hair of pliers can also dissolve food residues and ingest them into the body of pseudo-scorpions. After eating, clean the periphery of the anterior cavity of the mouth with the internal and external serrations on the fingers of pliers. Breathing through the trachea, there are two pairs of stomata located on the ventral surface of the third and fourth abdominal segments. Excretion passes through the basal ganglia and opens at the basal ganglia of the third pair of walking feet. Sensory devices include indirect eyes, tactile hair, auditory hair and lyre.

Copy:

The sperm transfer of pseudoscorpions varies from species to species: ① The most primitive way is that male pseudoscorpions put 1 sperm cells with stalks on the ground, while female pseudoscorpions are attracted to the sperm cells due to the stimulation of chemicals, and the female pores contact with the sperm of the sperm cells, so the sperm enters the female pores. ② Some kinds of males produce sperm pods and pull 1 signal filaments after contacting females. After touching the filament, the female finds the sperm pod along the filament. (3) begin to have pairing behavior. The male grasps the female with his claws and brings her to the sperm pod through courtship like dancing. ④ The most special form is that the male does not touch the female, but extends two tubular organs from the reproductive area of the abdomen to induce the female to dance, and then the male gives birth to 1 sperm pod on the ground and retreats. The female follows closely, and the male grasps the leg joint of the female touching the limb. When the female is in a proper position on the sperm pod, the male can help the female receive the sperm pod by pushing before use. Before laying eggs, females build a nest with dead leaves and debris, which is lined with silk secreted by pincer-like protrusions. After the egg is laid, it develops in the sac attached to the reproductive hole on the ventral surface of the body. Embryos acquire nutrients secreted by the mother's ovary in the later stage of development. The young pseudoscorpion molts 1 time before hatching and 1 time when hatching. The number of larvae hatched 1 time varies with species, ranging from 2 to more than 50. Molt twice again to reach sexual maturity. Every time before molting, you should build a nest like when the female lays eggs, and the wintering is also in the silk nest. It matures within about 1 year, and its life span is 2 ~ 5 years. Temperate species can produce several generations in 1 year. Podopods have the habit of carrying seeds, which can attach to insects such as Diptera, Hymenoptera, Coleoptera, Hemiptera and Orthoptera, blind spiders and birds, and then move to other places.