Mormotomyia hirsuta Austen, 1936

Terrible hairy fly, Hairy terrible fly



Taxonomy & Nomenclature



Conservation Status

Last record: December 1948

Rediscovered in November-December 2010















Original scientific description:

Austen, E. E. (1936). A remarkable semi-apterous fly (Diptera) found in a cave in East Africa, and representing a new family, genus and species. Proceedings of the Zoological Society of London 1936: 425-431.


Other references:

Copeland, Robert S. et al. (2014). Newly discovered populations of the “terrible hairy fly”, Mormotomyia hirsuta Austen (Diptera: Mormotomyiidae) in Kenya, with further observations on natural history. African Invertebrates 55 (2): 419-445.

Copeland, R. S., Kirk-Spriggs, A. H., Muteti, S., Booth, W. and Wiegmann, B. M. (2011). Rediscovery of the “terrible hairy fly”, Mormotomyia hirsuta Austen (Diptera: Mormotomyiidae), in eastern Kenya, with notes on biology, natural history, and genetic variation of the Ukasi Hill population. African Invertebrates 52(2): 363-390.

Kirk-Spriggs, A. H., Kotrba, M. and Copeland, R. S. (2011). Further details of the morphology of the enigmatic African fly Mormotomyia hirsuta Austen (Diptera: Mormotomyiidae). African Invertebrates 52(1): 145-165. [Abstract]

Oldroyd, H. (1964). The natural history of flies. London: Weidenfeld.

van Emden, F. I. (1950). Mormotomyia hirsuta Austen (Diptera) and its systematic position. Proceedings of the Entomological Society of London (B) 19: 121-128.

Winkler, I.S., Wiegmann, B.M., Bayless, K.M., Meier, R., Pape, T., Carvalho, B., Copeland, R.S. & KirkSpriggs, A.H. (in prep.) Monsters, misfits, and models: phylogeny of the superfamily Ephydroidea and relationships of the “terrible hairy fly”, Mormotomyia hirsuta.


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