Flea bites are usually found in patterns, groups, or clusters, and they are smaller than mosquito bites. Flea bites occur, close to the ground, on lower parts of the body such as feet and legs. They are more abundant around the ankles. In most people, there is no reaction unless they are sensitive to the protein in the saliva of the flea.
Mosquito bites are isolated, and they are commonly in the form of a single bump, which is characterized by redness and itching. Mosquito bites can occur in many different areas of the body, including the face, arms, legs, back, and torso. There is usually pain, stinging, and itching immediately after the bite. Flea bites tend to heal quicker than mosquito bites.