The existing information on arthropods as predators of ticks is based mainly on sporadic observations and their role in reducing tick populations and in most cases is still not clear. Some reports suggest that in certain ecological habitats arthropods play an important role in the control of the tick population. This publication reports on some 100 relevant publications that appeared between 1906 and 1999. Ants, beetles, and spiders seem to be the major arthropods preying on ticks. In general, engorged ticks are more often preyed upon by arthropods than are unfed or feeding ticks.