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The field biology of the adult sheep headfly, Hydrotaea irritans (Fallén) (Diptera: Muscidae), in south-western Scotland

Published online by Cambridge University Press:  10 July 2009

A. D. Berlyn
A. D. Berlyn
Affiliation:
Department of Zoology, The West of Scotland Agricultural College, Auchincruive, Ayr KA6 5HW, UK
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Abstract

Adults of Hydrotaea irritans (Fall.) in south-western Scotland were caught in a Manitoba trap and a black suction trap baited with carbon dioxide. Trapped flies were dissected to investigate their reproductive condition, their blood feeding activity and whether they were newly emerged. Trapping of the first gravid females in August was accompanied by a sharp decline in adult activity. The proportions of females in the various ovarian categories suggested that there is a preliminary phase before host-seeking begins, attraction to animals during most of the cycle and a behavioural change at the end. Females with eggs at stages I, II and III accounted for 94% of all females caught; the only females with blood in the gut were in these categories. Some males also were obviously blood-fed. There was a single mating period lasting five weeks. Inseminated females were first trapped in the third week of July, when the numbers of males started to decline, and within five weeks all females trapped were found to have been inseminated. After this, no more males were caught. Only females with eggs in stages later than stage II of the first ovarian cycle were inseminated. H. irritans was univoltine, with two but not three complete ovarian cycles during the summer. There was no difference in feeding or reproductive development between flies from the two traps.

Type
Original Articles
Information
Bulletin of Entomological Research , Volume 68 , Issue 3 , September 1978 , pp. 431 - 436
Copyright
Copyright © Cambridge University Press 1978

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References

Berlyn, A. D. (1978). The flight activity of the sheep headfly, Hydrotaea irritans (Fallér (Diptera: Muscidae)).—Bull. ent. Res. 68, 219–228.CrossRefGoogle Scholar
Hughes, R. D. (1974). Variation in the proportion of different reproductive stages of female bushflies (Musca vetustissima Wlk. (Diptera, Muscidae)) in bait catches as a cause of error in population estimates.—Bull. ent. Res. 64, 65–71.CrossRefGoogle Scholar
Nielsen, B. O., Nielsen, B. M. & Christensen, O. (1971). Bidrag til plantagefluens, Hydrotaea irritans Fall., biologi (Diptera, Muscidae).—Ent. Meddr 39, 30–44.Google Scholar
Nielsen, B. O., Nielsen, B. M. & Christensen, O. (1972). Plantagefluen, Hydrotaea irritans (Fall.) påa graessende kvier (Diptera, Muscidae).—Ent. Meddr 40, 151–173.Google Scholar
Robinson, J. & Luff, M. L. (1976). The sheep headfly, Hydrotaea irritans (Fall.) (Diptera, Muscidae): larval habitat and immature stages.—Bull. ent. Res. 65, 579–586.CrossRefGoogle Scholar
Service, M. W. (1973). Observations on the flight activities of Chrysops caecutiens L.—Ann. trop. Med. Parasit. 67, 445–454.CrossRefGoogle ScholarPubMed
Tarry, D. W. & Kirkwood, A. C. (1974). Hydrotaea irritans: the sheep headfly in Britain.— Br. vet. J. 130, 180–188.CrossRefGoogle ScholarPubMed
Tarry, D. W. & Kirkwood, A. C. (1976). Biology and development of the sheep headfly Hydrotaea irritans (Fall.) (Diptera, Muscidae).—Bull. ent. Res. 65, 587–594.CrossRefGoogle Scholar
Thorsteinson, A. J., Bracken, G. K.. & Hanec, W. (1965). The orientation behaviour of horse flies and deer flies (Tabanidae, Diptera). III. The use of traps in the study of orientation of Tabanids in the fleld.—Entomologia exp. appl. 8, 189–192.CrossRefGoogle Scholar
Titchener, R. N. (1975). The sheep headfly problem.—Blackface Breeders Journal 27, 29–30.Google Scholar
Tyndale-Biscoe, M. (1971). Protein-feeding by the males of the Australian bushfly Musca vetustissima WIk. in relation to mating performance.–Bull. ent. Res. 60, 607–614.CrossRefGoogle Scholar
Tyndale-Biscoe, M. & Hughes, R. D. (1969). Changes in the female reproductive system as age indicators in the bushfly Musca vetustissima Wlk.—Bull. ent. Res. 59, 129–141.CrossRefGoogle Scholar