Biology:List of termites of Sri Lanka

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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 is about Termites recorded in Sri Lanka.

Termite

Phylum: Arthropoda
Class: Insecta
Order: Blattodea
Infra Order: Isoptera

Termites are eusocial insects that are classified at the taxonomic rank of infraorder Isoptera, or as epifamily Termitoidae within the cockroach order Blattodea. Termites were once classified in a separate order from cockroaches, but recent phylogenetic studies indicate that they evolved from close ancestors of cockroaches during the Jurassic or Triassic. It is possible, however, that the first termites emerged during the Permian or even the Carboniferous. Approximately 3,106 species are currently described, with a few hundred more left to be described.

In 1913, Green compiled a concise catalogue for isopterans in Sri Lanka.[1] The first known study on termites was done by Wasmann during British period. Since then, many local and overseas scientists engaged on many studies, some in crop plantations as well.[2][3] A detailed work on Sri Lankan termites was done by University of Peradeniya in 2012. According to this checklist, which is based on 1893 literature, a total of 64 species of termites in 27 genera and 4 families are recorded from Sri Lanka.[4][5][6]

Endemic species are denoted as E.

Family: Hodotermitidae - Harvester termites

Family: Kalotermitidae - Drywood termites

Family: Rhinotermitidae - Subterranean termites

Family: Termitidae - Higher termites

Notes

A sign of termite infestation that is very poignant is the appearance of swarmers or alates. A termite colony can get overpopulated. A new queen will strike out on her own to begin a new colony. She needs to mate with a male of the species and find a new area in which to start building her nest. Growing wings and flying enables her to do this. So each season, alates emerge from the colonies and take flight. When they do, and what triggers them to come out depend mostly on the weather and the population pressure in the termite colony. High humidity, and warm weather favour these manifestations.

References

  1. ↑ Bambaradeniya, Channa N. B. (2006). The Fauna of Sri Lanka: Status of Taxonomy, Research, and Conservation. ISBN 978-955-8177-51-8. https://books.google.com/books?id=KpSwBAAAQBAJ&dq=Neuroptera+in+Sri+Lanka&pg=PA5. Retrieved 23 January 2016. 
  2. ↑ "Evaluation of the Response of low-country live wood termite, Glyptotermes dilatatus Bugnion &Popoff (Isoptera: Kalatermididae) for semiochemicals present in rotted and healthy stems of tea cultivars". University of Kelaniya. http://repository.kln.ac.lk/handle/123456789/5217. 
  3. ↑ "Status of Biological Control of Insect and Mite Pests of Tea in Sri Lanka". Division of Entomology, Tea Research Institute, Talawakelle, Sri Lanka. http://repository.rjt.ac.lk/jspui/bitstream/7013/1304/1/Status%20of%20Biological%20Control%20of.pdf. 
  4. ↑ "An Annotated checklist of termites of Sri Lanka". National Science Foundation, Sri Lanka. 2012. http://dl.nsf.ac.lk/ohs/pdf/NA_Collection/NA396/NA396.pdf. 
  5. ↑ "History of Insect collection and a review of insect diversity in Sri Lanka". CiteSeerX 10.1.1.379.2411.
  6. ↑ Hemachandra, I. I.; Edirisinghe, J. P.. "Deversity and Microhabits of Termites (Insecta:Isoptera) at the Udawattakele Forest Sanctuary, Kandy". University of Peradeniya. http://unicat.nilis.cmb.ac.lk/Record/oai:www.dlib.pdn.ac.lk:1-4507. 



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