This type of ant is small in size, brownish red in color, and has a very sensitive sense of smell. Due to the release of formic acid during crawling, its movement path is relatively fixed. I like to eat sweets, dairy products, high protein, and high-fat foods. This ant has strong selectivity for environment and room temperature, and is afraid of cold. When the room temperature is below 6 ℃, it does not go out of its nest to forage. It has strong resistance to hunger and thirst, strong reproductive ability, and fast speed. Most of them inhabit the gaps between ceramic tiles in kitchens, bathrooms, and other places.

Small house ants are usually brought from outside, such as furniture, decorative materials, etc. This type of ant likes to live in relatively humid environments, usually hiding in the gaps between the tiles, cement, and pipes of brick and concrete structures, and then entering the kitchen and bathroom. The breeding speed of red ants is very fast, usually two to three litters per month, and summer is their peak breeding season. This type of ant sometimes crawls onto people to bite, and small red dots appear on the bitten area, which is very itchy. Due to the ability of these ants to transmit diseases, parents should pay more attention to their children.

Due to the rampant flow of red ants in the living room, their bodies are naturally covered with various bacteria, viruses, and parasitic eggs. Improper storage of leftover food can lead to ant invasion. When ants climb onto food, they release a large amount of formic acid to contaminate it, which can cause gastrointestinal discomfort and various intestinal diseases in humans; Due to the preference of red ants for dairy products, nursing infants and young children are more susceptible to ant bites, resulting in red spots under the skin and extreme itching. After scratching, the spots become ulcerated and suppurative, which is difficult to heal. It also affects people's normal rest and sleep, bringing many troubles and inconveniences to their daily lives.

Small house ants are omnivorous insects. The sugar, cake, meat, and other foods we eat are all delicious to them. They can directly carry various bacteria and spread them to the places they crawl over, causing various diseases. They can also bite the human body, causing redness, pain, and itching, especially when they love to bite the delicate skin of babies, which can lead to diseases. In residential buildings, small house ants can spread outward through gaps in walls, outdoor walls, water supply and drainage pipes, pipe wells, etc., and the spread speed is quite fast. Generally speaking, if one household in a residential building discovers ants, the entire building will gradually discover ants. There have been reports of ants invading indoor spaces in various parts of China. They not only steal food and cause pollution, but also bite people and even transmit some diseases, posing a serious threat to people's health. In addition, there have been reports of economic losses caused by ant contamination of raw materials or finished products from food and pharmaceutical factories, as well as patient bites and contamination of drugs and surgical instruments in hospitals.