These mites belong to arachnid family. They mostly are ignored due to mini size. Their bite is very powerful and produces an intense itch. Adult chiggers have got eight legs. The size of a chigger is about 1/60th inch. It makes it barely noticeable.
They live in the tall grasses and wooden areas. They take high jumps and can immediately attach on your skin when you move through areas having these insects. They cannot live in extremes of temperature like below 16 degrees or above 40 degrees centigrade.