Simulium yahense

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Onchocerca volvulus emerging from a black fly.jpg
Simulium yahense
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Diptera
Family: Simuliidae
Subfamily: Simuliinae
Tribe: Simuliini
Genus: Simulium
Subgenus: Simulium
Species: S. yahense
Binomial name
Simulium yahense
Vajime & Dunbar, 1975

Simulium yahense is a species of Black fly found in West African rain forests. Their larval stages are found in "smaller, more shaded, cooler breeding waters."[1] One particular group, now eradicated, was found only on the island of Bioko, and was an extremely effective vector for the parasitic worm Onchocerca volvulus that causes onchocerciasis, or "River blindness".[2]


  1. ^ Fryauff DJ, Trpis M. (November 1986). "Identification of larval and adult Simulium yahense and Simulium sanctipauli based on species-specific enzyme markers and their distribution at different breeding habitats in Central Liberia". Am J Trop Med Hyg. 35 (6): 1218–30. PMID 2947482. 
  2. ^ "Simulium yahense 'Bioko'". History Online. Natural History Museum. Retrieved 3 February 2012.