The red flour beetle (Tribolium castaneum) is a small insect commonly found in stored grain products. It measures about 3 to 4 millimeters in length and has a reddish-brown color. These beetles are known for their ability to thrive in various environments, particularly in flour, cereals, and other dry food items. Red flour beetles are considered pests because they can contaminate food supplies. They reproduce quickly, with females laying hundreds of eggs in suitable conditions. Effective control methods include proper storage practices and regular cleaning to minimize infestations in homes and food processing facilities.