They tiny red dots you see on concrete and bricks are termites!

These little guys are also known as Clover mites.They are accidental invaders that can be a nuisance during the early spring and occasionally in the fall. They are very small; as a matter of fact they are TINY, reddish-brown creatures that appear only as moving dark spots to the naked eye.

Clover mites are not blood feeders and will not harm people or pets, nor will they infest household products. Once they are inside a home or building they will die soon.

These little guys feed on clover and grasses. They can be especially abundant in the heavy, succulent growth of well-fertilized lawns. They are also temporary nuisance; they appear suddenly and then are gone.

Mites seen on the outside of buildings can be killed with a direct spray of an insecticidal soap or regular liquid dish-washing soap at the rate of 2 tablespoons per gallon of water. However they do not represent any threat at all.

(Source)