Coordinates Jiaozuo, Henan, I met several such bugs at home today. I want to know what kind of bug it is.

According to the photo you provided, this may be a tobacco beetle. Tobacco beetle is a common insect, which usually lives in tobacco and other cereals. Their appearance is reddish brown, their body length is about 1-2 mm, their body shape is slightly flat, and their head and chest are wider than their abdomen.

If you find this kind of bug at home, it may be because there is wet tobacco, grain or other food at home, which leads to their breeding. I suggest you clean and dry your food and articles at home to prevent the breeding of tobacco beetles.

Of course, this is only my preliminary judgment, and the specific appraisal needs the help of professionals. If more accurate identification and prevention suggestions are needed, it is recommended to consult local insect experts or professional insecticidal companies.