1. Thorn moth larvae

The larvae of the stinging moth can be said to be distributed throughout the country, fattening short, slug-like. No gastropods, substitute for suction cups. When moving, it is not crawling but sliding. Some larvae are brightly colored, and the appendages are densely covered with brown spiny hairs, like unkempt hair, and the appendages protrude out of the cocoon when cocooned to protect and camouflage. When disturbed, it stings people with poisonous thorns and causes a rash. The larvae of the thorn moth are mostly called jingtiao tigers, in the northeast they are called foreign spicy seeds, and as cocoons are called foreign spicy pots. The eastern dialect of Shandong is called 瘄子毛, 八街毛子, touch mao.
2. Lychee bugs
Litchi bugs are mainly distributed in Fujian, Jiangxi, Guangdong, Guangxi, Guizhou, Yunnan, Taiwan, also known as fart bugs, they encounter danger will release a stinky liquid, a strong corrosive odor, this odor if it comes into contact with human skin, it may also lead to skin ulceration. If dropped into the eye, it may cause transient blindness, and it should be washed immediately with plenty of water.
3. Datian negative bug
Datian negative bug, also known as Datian turtle, is also known as water knower, pincer bug, turtle bug, large water bug, water overlord or toe bite bug. The pain of being bitten by a turtle is one of the most severe of all insects. Their saliva liquefies muscles. In some rare cases, a bite from a turtle can also cause permanent damage to the human body, so try not to bring your face close to these terrible insects while drunk. Sometimes, when encountering larger predators or invaders – such as humans – the turtles stage "pretend to be dead" escape tactics. They spew a liquid from their anus, making themselves look very disgusting and causing predators to lose their appetite.
4. Poisonous cryptoptera
Poisonous cryptoptera is widely distributed, widely distributed in China, the hemolymphatic fluid of cryptoptera contains a fierce contact toxin, called cryptoptera, which is a complex non-protein substance. It contains this toxin at all stages of development and has a defensive function. When the body is compressed or crushed, contact with the skin causes cryptoptera dermatitis or nematitis. The first contact method is contact with the broken insect body; Second, the venom is carried by the fingers to other parts of the body or to the skin and mucous membranes of other people, causing inflammation.
Distribution of cryptoptera
Toxic cryptoptera dermatitis
5. Hard tick
Hard tick, also known as grass crawler, dog bean, tick, tick, flat lice, is an important exoplasm of dogs, hard tick is mostly distributed in open nature, such as forests, bushes, grasslands, semi-desert areas. A small number of tick bites, most dogs do not show clinical symptoms, but when the number increases, the sick dog appears painful, irritable, often rubbing, scratching and licking to try to get rid of pests, but this effort often leads to local bleeding, edema, inflammation and keratin hyperplasia. In addition, the hard tick is also an important vector for other parasitic diseases and infectious diseases, indirectly causing disease in dogs.
6. Cattle fly
Fly, also known as flyfly, cattle fly, cattle mosquito, is a kind of medium and large blood-sucking insects, generally yellow or gray, smooth body surface, head, chest, abdomen three parts, the head is mostly hemispherical from the transparent with black band points, the distribution of flies is widely lacking, throughout the country, to Inner Mongolia, mainly scraping the blood of livestock and wild animals, some also bite people, can spread a variety of diseases of humans and animals.
7. Mosquitoes
Although the mosquito itself is not poisonous, it is indeed the intermediate host of other pathogens such as dengue fever, malaria, yellow fever, filariasis, Japanese encephalitis, etc. Only female mosquitoes suck blood, and males do not suck blood. Female mosquitoes must suck blood from their ovaries in order to develop and reproduce. Female mosquitoes mostly begin to suck blood 2-3 days after feathering, and various factors such as temperature, humidity, and light can affect the blood-sucking activity of mosquitoes. When the temperature is above 10 ° C, it begins to suck blood; in general, Aedes mosquitoes mostly suck blood during the day, Andychos mosquitoes and Culex mostly suck blood at night; some are bloodthirsty, and some mosquitoes love to suck the blood of domestic animals, but there is no strict selectivity, so mosquitoes can spread zoonotic diseases.