Tsetse fly

Tsetse fly
Temporal range: Eocene - Recent
Glossina morsitans
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
(unranked): Eremoneura
(unranked): Cyclorrhapha
Section: Schizophora
Subsection: Calyptratae
Superfamily: Hippoboscoidea
Family: Glossinidae
Theobald, 1903
Genus: Glossina
Wiedemann, 1830
Species groups
  • Morsitans ("savannah" subgenus)
  • Fusca ("forest" subgenus)
  • Palpalis ("riverine" subgenus)
Range of the tsetse fly

Tsetse (/ˈstsi/ SEET-see, US: /ˈtstsi/ TSEET-see or UK: /ˈtsɛtsə/ TSET-sə) (sometimes spelled tzetze; also known as tik-tik flies) are large, biting flies that inhabit much of tropical Africa.[1][2][3] Tsetse flies include all the species in the genus Glossina, which are placed in their own family, Glossinidae. The tsetse is an obligate parasite, which lives by feeding on the blood of vertebrate animals. Tsetse has been extensively studied because of their role in transmitting disease. They have a pronounced economic impact in sub-Saharan Africa as the biological vectors of trypanosomes, causing human and animal trypanosomiasis.

Tsetse can be distinguished from other large flies by two easily-observed features: Primarily, tsetse fold their wings over their abdomens completely when they are resting (so that one wing rests directly on top of the other); Secondly, tsetse also have a long proboscis, extending directly forward, which is attached by a distinct bulb to the bottom of their heads.

Fossilized tsetse has been recovered from Paleogene-aged rocks in the United States and Germany. Twenty-three extant species of tsetse flies are known from the African continent as well as the Arabian Peninsula.

  1. ^ Rogers, D.J.; Hay, S.I.; Packer, M.J. (1996). "Predicting the distribution of tsetse flies in West Africa using temporal Fourier-processed meteorological satellite data". Annals of Tropical Medicine and Parasitology. 90 (3): 225–241. doi:10.1080/00034983.1996.11813049. PMID 8758138.
  2. ^ Farrar, Jeremy; Hotez, Peter; Junghanss, Thomas; Kang, Gagandeep; Lalloo, David; White, Nicholas J. (2013). Manson's Tropical Diseases (23rd ed.). Philadelphia: Saunders. p. 607. ISBN 978-0-7020-5101-2.
  3. ^ M. Service, ed. (2001). Encyclopedia of Arthropod-Transmitted Infections of Man and Domesticated Animals. New York: Centre for Agriculture and Biosciences International. ISBN 978-0-85199-473-4.

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