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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.

Ticks

Ticks are small arachnids in the order Parasitiformes. Along with mites, they constitute the subclass Acari. Ticks are ectoparasites (external parasites), living by hematophagy on the blood of mammals, birds, and sometimes reptiles and amphibians. Ticks are vectors of a number of diseases that affect both humans and other animals.

Despite their poor reputation among human communities, ticks may play an ecological role by culling infirm animals and preventing overgrazing of plant resources.

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. 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, 27 species of hard ticks belonging to nine genera have been reported to date from Sri Lanka.

Endemic species are denoted as E.

Family: Ixodidae

• Amblyomma clypeolatum
• Amblyomma gervaisi
• Amblyomma integrum
• Amblyomma javanense
• Amblyomma testudinarium
• Amblyomma trimaculatum
• Amblyomma varanense
• Dermacentor auratus
• Ixodes petauristae
• Ixodes ceylonensis
• Haemaphysalis aculeata
• Haemaphysalis anomala
• Haemaphysalis bispinosa
• Haemaphysalis cuspidata
• Haemaphysalis hystricis
• Haemaphysalis intermedia
• Haemaphysalis kyasanurensis
• Haemaphysalis leachi
• Haemaphysalis minuta
• Haemaphysalis spinigera
• Haemaphysalis turturis
• Hyalomma brevipunctata
• Hyalomma marginatum
• Nosomma monstrosum
• Nuttalliella namaqua
• Rhipicephalus annulatus
• Rhipicephalus microplus
• Rhipicephalus haemaphysaloides
• Rhipicephalus sanguineus

Soft ticks

The exact classification of soft ticks in Sri Lanka is not yet understood completely. Soft ticks are belongs to Argasidae.

• Argas persicus
• Ornithodoros savignyi
• Otobius megnini

References

1. Barker, S. C.; Murrell, A. (2004). "Systematics and evolution of ticks with a list of valid genus and species names". Parasitology. 129: S15–S36. doi:10.1017/S0031182004005207. PMID 15938503.
2. Klompen JS, Black WC, Keirans JE, Oliver JH (1996). "Evolution of ticks". Annual Review of Entomology. 41: 141–61. doi:10.1146/annurev.ento.41.1.141. PMID 8546444.
3. Anderson John F (2002). "The natural history of ticks". Medical Clinics of North America. 86 (2): 205–218. doi:10.1016/s0025-7125(03)00083-x. PMID 11982298.
4. Diyes, GCP; Rajakaruna, RS (2015). "Diversity and distribution of tick species infesting goats with two new host records from Sri Lanka". Journal of the National Science Foundation of Sri Lanka. 43 (3): 225. doi:10.4038/jnsfsr.v43i3.7951.
5. "The Mighty Tick (Published 2012)". The New York Times. Archived from the original on 2023-06-20.
6. D. H. Molyneux (1993). "Vectors". In Francis E. G. Cox (ed.). Modern parasitology: a textbook of parasitology (2nd ed.). Wiley-Blackwell. pp. 53–74. ISBN 978-0-632-02585-5.
7. Alberto A. Guglielmone; Richard G. Robbing; Dmitry A. Apanaskevich; Trevor N. Petney; Agustín Estrada-Peña; Ivan G. Horak; Renfu Shao; Stephen C. Barker (2010). "The Argasidae, Ixodidae and Nuttalliellidae (Acari: Ixodida) of the world: a list of valid species names" (PDF). Zootaxa. 2528: 1–28. doi:10.11646/zootaxa.2528.1.1.
8. Bambaradeniya, Channa N. B. (2006). The Fauna of Sri Lanka: Status of Taxonomy, Research, and Conservation. ISBN 9789558177518. Retrieved 23 January 2016.
9. "Ticks and Fleas - FrogSL" (PDF). FrogSL. Archived from the original (PDF) on 4 March 2016. Retrieved 1 June 2016.
10. "Epidemiological Study on Ticks in Farm Animals in Selected Areas" (PDF). pgia.ac.lk. Retrieved 1 June 2016.
11. Alberto A. Guglielmone; Richard G. Robbins; Dmitry A. Apanaskevich (2013-11-21). The Hard Ticks of the World: (Acari: Ixodida: Ixodidae). ISBN 9789400774971. Retrieved 1 June 2016.
12. Diyes, GC; Rajakaruna, RS (2016). "Seasonal dynamics of spinose ear tick Otobius megnini associated with horse otoacariasis in Sri Lanka". Acta Trop. 159: 170–5. doi:10.1016/j.actatropica.2016.03.025. PMID 27012721.
13. "Life cycle of Ornithodoros rostratus (Acari: Argasidae) under experimental conditions and comments on the host-parasite relationship in the Pantanal wetland region, Brazil". Parasitology. Retrieved 11 February 2017.
14. "The ticks (Ixodoidea) of Ceylon. Part I. Argasidae". Ceylon Veterinary Journal. Retrieved 11 February 2017.

• Arthropods of Sri Lanka
• Lists of biota of Sri Lanka