What is the name of the part of the insect leg that is attached to the body?

The part of the insect leg that is attached to the body is known as the coxa. The coxa serves as the point of articulation, allowing the leg to move in conjunction with the body. It is the first segment of the leg structure that connects it to the thorax, providing essential support and movement capabilities. Understanding the structure and function of the coxa is important in entomology and pest management, as it plays a crucial role in an insect's mobility and behavior.

The other options refer to different components of the insect leg or body. The femur is a segment of the leg located after the coxa and is involved in locomotion through muscle attachment, while the pretarsus is located at the tip of the leg and is involved in grasping or walking on various surfaces. The mandible, on the other hand, is not part of the leg; it is a mouthpart used for feeding. Recognizing these anatomical features helps in understanding insect morphology and their ecological roles.