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The medical importance and behaviour of Simulium austeni Edwards (Diptera: Simuliidae) in England

Published online by Cambridge University Press:  10 July 2009

R. G. Hansford
Affiliation:
Freshwater Biological Association River Laboratory, East Stoke, Wareham, Dorset BH20 6BB, UK
M. Ladle*
Affiliation:
Freshwater Biological Association River Laboratory, East Stoke, Wareham, Dorset BH20 6BB, UK
*
*Correspondence to Dr. Ladle.

Abstract

The biting habits of Simulium austeni Edwards, a species widely distributed through Europe and European Russia, were investigated in a population of flies creating a medical problem along the Stour Valley, Dorset, England, in May each year. Surveys were made by questionnaires and ‘bite-recording forms’. Sweep-netting, suction-trapping and sticky-trapping of adult flies was carried out. A search was made for oviposition sites. After initial complaints in the early 1960s, the problem reached a peak between 1969 and 1971 and has since shown an apparent decline. Women suffered more than men, with most bites received on the lower limbs. Biting activity was greatest between 09.00 and 21.00 h, and flight activity was greatest in the afternoon. Extensive male swarms were associated with mating and smaller female swarms with blood-sucking. Mating probably precedes biting. The absence of eggs from surface vegetation or stones and their widespread occurrence in the sediment, suggest that oviposition takes places directly into the water.

Type
Original Articles
Copyright
Copyright © Cambridge University Press 1979

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References

Carlsson, G. (1962). Studies on Scandinavian black flies.—Opusc. ent. Suppl. 21, 1280.Google Scholar
Cloudsley-Thompson, J. L.(1955). The black-fly Simulium venustum biting man.—Entomologi. 88, 1819.Google Scholar
Crosskey, R. W. (1973). Simuliidae (Black-flies, German: Kriebelmücken), pp. 109153in Smith, K. G. V. (Ed.). Insects and other arthropods of medical importance.—London, Trustees of the British Museum (Natural History).Google Scholar
Davies, L. (1957). A study of the blackfly, Simulium ornatum Mg. (Diptera), with particular reference to its activity on grazing cattle.—Bull. ent. Res. 48, 407424.CrossRefGoogle Scholar
Davies, L.., Down, A. E. R.., Weitz, B. & Williams, C. B. (1962). Studies on black-flies (Diptera: Simuliidae) taken in a light trap in Scotland. II. Blood-meal identification by precipitin test.—Trans. R. ent. Soc. Lond. 114, 2127.Google Scholar
Eichler, P. A. (1971). Studies on Onchocerca gutturosa (Neuman, 1910) and its development in S. ornatum (Meigen, 1818). I. Observations on O. gutturosa in cattle in S.E. England.—J. Helminth. 45, 245–258. II. Behaviour of S. ornatum in relation to transmission of O. gutturosa.—J. Helminth. 45, 259270.CrossRefGoogle Scholar
Fallis, A. M. (1964). Feeding and related behaviour of female Simuliidae (Diptera).—Expl. Parasit. 15, 439470.CrossRefGoogle ScholarPubMed
Fredeen, F. J. H. (1959). Rearing black-flies in the laboratory (Diptera: Simuliidae).—Can. Ent. 91, 7383.CrossRefGoogle Scholar
Fredeen, F. J. H. (1963). Oviposition in relation to the accumulation of bloodthirsty black-flies (Simulium (Gnus) arcticum Mall.) (Diptera) prior to a damaging outbreak.—Nature, Lond. 200, 1024.CrossRefGoogle Scholar
Grenier, P. (1953). Simuliidae de France et d'Afrique du nord.—Encycl. ent.(A) 29, 1170.Google Scholar
Hansford, R. G. (1978 a). The biology of Simulium austeni Edwards, 1915, with special reference to feeding in the larval stage.—Ph.D. thesis, Univ. Southampton.Google Scholar
Hansford, R. G. (1978 b). Life history and distribution of Simulium austeni (Diptera: Simuliidae) in relation to phytoplankton in some southern English rivers.—Freshwat. Biol. 8, 521531.CrossRefGoogle Scholar
Hocking, B. (1953). The intrinsic range and speed of flight of insects.—Trans. R. ent. Soc. Lond. 104, 223345.Google Scholar
Johnson, C. G. (1950). A suction trap for small airborne insects which automatically segregates the catch into successive hourly samples.—Ann. appl. Bio. 37, 8091.CrossRefGoogle Scholar
Kajak, Z.., Dusoge, K. & Prejs, A. (1968). Application of the flotation technique to assessment of absolute numbers of benthos.—Ekol. Pol. 16, 607620.Google Scholar
Ladle, M.., Bass, J. A. B.., Philpott, F. R. & Jeffery, A. (1977). Observations on the ecology of Simuliidae from the River Frome, Dorset.—Ecol. Ent. 2, 197204.CrossRefGoogle Scholar
Moorhouse, D. E. & Colbo, M. H. (1973). On the swarming of Austrosimulium pestilens Mackerras and Mackerras (Diptera: Simuliidae).—J. ent. Soc. Aust. (N.S.W.). 12, 127130.CrossRefGoogle Scholar
Muirhead-Thomson, R. C. (1968). Ecology of insect vector populations.—174 pp. London and New York, Academic Press.Google Scholar
Obeng, L. (1967). Life-history and population-studies on the Simuliidae of North Wales.—Ann. trop. Med. Parasit. 61, 472487.CrossRefGoogle ScholarPubMed
Peterson, D. G. & Wolfe, L. S. (1958). The biology and control of black-flies (Diptera: Simuliidae) in Canada.—10th Int. Congr. Ent. (Montreal).3, 551564.Google Scholar
Rubtzov, I. A. (1959–64). Simuliidae (Melusinidae).—Fliegen palaearkt. Reg. 3, 1689.Google Scholar
Rühm, W. (1971). Eiablagen einiger Simuliidenarten.—Angew. Parasit. 12, 6878.Google Scholar
Service, M. W. (1971). Observations on swarming of adults of S. austeni Edwards (Diptera: Simuliidae).—Entomologist's mon. Mag. 107, 167168.Google Scholar
Steward, J. S. (1937). The occurrence of Onchocerca gutturosa Neumann in cattle in England, with an account of its life history and development in Simulium ornatum Mg.—Parasitolo. 29, 212219.CrossRefGoogle Scholar
Taylor, L. R. (1951). An improved suction trap for insects.—Ann. appl. Biol. 38, 582591.CrossRefGoogle Scholar
Zahar, A. R. (1951). The ecology and distribution of black-flies (Simuliidae) in south-east Scotland.—J. Anim. Eco. 20, 3362.CrossRefGoogle Scholar