They are found in sout southeastern Europe, Asia Minor, north, central, west and east Africa, Arabia, central and southwestern Asia, India, Sri Lanka, southwestern Canada, the western United States, and northwestern Mexico.[2]
Fossil erycines have been found in rock strata over 50 million years old, and were once widespread in North America. Now, only two females remain in North America, as well as the sand boas in Africa, Asia, and southeastern Europe.