What bug attaches to skin and scalp?

The bug that commonly attaches to the skin and scalp is the head lice (Pediculus humanus capitis). These tiny parasitic insects feed on human blood and are often found in hair, particularly close to the scalp. They can cause itching and irritation, and are most commonly spread through close head-to-head contact. Treatment typically involves over-the-counter insecticidal shampoos or prescription medications.