Sri Lanka is a tropical island situated close to the southern tip of India. The invertebrate fauna is as large as it is common to other regions of the world. There are about 2 million species of arthropods found in the world, and still it is counting. So many new species are discover up to this time also. So it is very complicated and difficult to summarize the exact number of species found within a certain region.
The following list provide the hard ticks currently identified in Sri Lanka.
Despite their poor reputation among human communities, ticks may play an ecological role by culling infirm animals and preventing overgrazing of plant resources.[5]
The Ixodidae are a family of ticks containing the hard ticks. They are distinguished from the other main family of ticks, the soft ticks (Argasidae) by the presence of a scutum or hard shield.[6] In both the nymph and the adult, a prominent capitulum (head) projects forwards from the animal's body; in the Argasidae, conversely, the capitulum is concealed beneath the body.
Of the 702 species in 14 genera,[7] 27 species of hard ticks belonging to nine genera have been reported to date from Sri Lanka.[8][9][10][11]