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The responses of tsetse flies (Diptera, Glossinidae) to mobile and stationary baits

  • G. A. Vale (a1)
Abstract
Abstract

In Rhodesia, field studies were made of the initial attraction of G. morsitans morsitans Westw. and G. pallidipes Aust. to mobile and stationary baits, using flight traps which surrounded baits or which were placed in the densest part of the attracted swarm. With stationary baits, many flies were attracted by host odour and visual stimuli assisted final orientation. With mobile baits, many flies were attracted by visual stimuli alone; odour did not increase attraction. With both mobile and stationary baits, there was no indication that major hosts are much more effective than minor ones as initial attractants, although stationary men were exceptionally poor baits, for G. pallidipes especially. The sex and species compositions of catches from stationary baits other than men were representative roughly of the inactive population—70% females of both species, and a roughly 1:4 ratio of G. morsitans to G. pallidipes. The sex and species compositions of catches from all mobile baits were biased—40% female G. morsitans, 60% female G. pallidipes, and a roughly 2:1 species ratio. Nearly all flies attracted to stationary baits were hungry whereas 10–25% of both sexes visiting mobile baits had fed recently. The use of a variety of electrocuting devices showed that compact persistent responses and alighting reactions of attracted flies were evident more for males than for females, more for G. morsitans than for G. pallidipes, more near model animals with host odour than near odourless models, more near models than near men, and more with tenerals and hungry non-tenerals than with recently fed flies. Men with mobile baits depressed greatly the alighting reactions and with stationary baits men inhibited greatly the initial attractions. Both effects of men were greater with females than with males and greater with G. pallidipes than with G. morsitans. Men were recognised by their upright appearance and odour. Only desperately hungry flies probed men whereas less-hungry flies probed an ox with men. Food-seeking flies of differing nutritional state were not shown to distinguish between mobile and stationary baits. Although the results support the conventional view that mating and feeding functions in the response to hosts occupy distinct phases of the hunger cycle, it seems necessary to modify the conventional view by placing more emphasis on the role of mobile baits as food sources and by envisaging a definite mate-seeking response by mature females.

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Brady J. (1972 a). The visual responsiveness of the tsetse fly Glossina morsitans Westw. (Glossinidae) to moving objects: the effects of hunger, sex, host odour and stimulus characteristics.—Bull. ent. Res. 62, 257279.
Brady J. (1972 b). Spontaneous, circadian components of tsetse fly activity.—J. Insect Physiol. 18, 471484.
Brady J. (1973). Changes in the probing responsiveness of starving tsetse flies (Glossina morsitans Westw.) (Diptera, Glossinidae).—Bull. ent. Res. 63, 247255.
Bursell E. (1959 a). The water balance of tsetse flies.—Trans. R. ent. Soc. Lond. 111, 205235.
Bursell E. (1959 b). Physiological studies on Glossina.Rep. E. Afr. Trypan. Res. Org. 1958, 3235.
Bursell E. (1961 a). The behaviour of tsetse flies (Glossina swynnertoni Austen) in relation to problems of sampling.—Proc. R. ent. Soc. Lond. (A) 36, 920.
Bursell E. (1966 b). Post-teneral development of the thoracic musculature in tsetse flies.—Proc. R. ent. Soc. Lond. (A) 36, 6974.
Bursell E. (1966) The nutritional state of tsetse flies from different vegetation types in Rhodesia.—Bull. ent. Res. 57. 171180.
Bursell E. & Slack E. (1969). Indications concerning the flight activity of tsetse flies (Glossina morsitans Westw.) in the field.—Bull. ent. Res. 58, 575579.
Buxton P. A. (1955). The natural history of tsetse flies. An account of the biology of the genus Glossina (Diptera).—Mem. Lond. Sch. Hyg. trop. Med. no. 10, 816 pp.
Chapman R. F. (1961). Some experiments to determine the methods used in host-finding by the tsetse fly, Glossina medicorum Austen.—Bull. ent. Res. 52, 8397.
Chorley T. W. (1948). Glossina pallidipes Austen attracted by the scent of cattle-dung and urine (Diptera).—Proc. R. ent. Soc. Lond. (A) 23, 911.
Cumming D. H. M. (1970). A contribution to the biology of warthog (Phacocherus africanus Gmelin) in the Sengwa Region of Rhodesia, Vol. I.—245 pp. Ph.D. dissertation, Rhodes University.
Cunningham M. P., Kimber C. D. & Bailey N. M. (1967). Identification of the blood meals of blood-sucking insects. In International Scientific Council for Trypanosomiasis Research. Eleventh Meeting, Nairobi, 31.x–4.xi.1966.—Publ. scient, tech. Res. Commn, Org. Afr. Unity no. 100, 121122.
Downes J. A. (1969). The swarming and mating flight of Diptera.—A. Rev. Ent., 14, 271298.
Dukes H. H. (1943). The physiology of domestic animals.—5th edn., revised, 721 pp. New York, Comstock.
Ford J. (1969). Feeding and other responses of tsetse flies to man and ox and their epidemiological significance.—Acta trop. 26, 249264.
Fuller C. & Mossop M. C. (1929). Entomological notes on Glossina pallidipes.—Sci. Bull. Dep. Agric. S. Afr. no. 67, 27 pp.
Gatehouse A. G. (1972). Some responses of tsetse flies to visual and olfactory stimuli.—Nature New Biol. 236, 6364.
Harley J. M. B. (1963). The attack of G. pallidipes and Stomoxys on cattle of different colours.—Rep. E. Afr. Trypan. Res. Org. 1961, 3435.
Jackson C. H. N. (1933). The causes and implications of hunger in tsetse-flies.—Bull. ent. Res. 24, 443482.
Jackson C. H. N. (1946). An artificially islolated generation of tsetse flies (Diptera).—Bull. ent. Res. 37, 291299.
Jordan A. M. (1974). Recent developments in the ecology and methods of control of tsetse flies (Glossina spp.) (Dipt. Glossinidae)—a review.—Bull. ent. Res. 63, 361399.
Moggridge J. Y. (1936). Experiments on the crossing of open spaces by Glossina swynnertoni.—Bull. ent. Res. 27, 435448.
Morris K. R. S. & Morris M. G. (1949). The use of traps against tsetse in West Africa.—Bull. ent. Res. 39, 491528.
Mulligan H. W. (Ed.) (1970). The African trypanosomiases.—950 pp. London, Allen & Unwin.
Napier Bax S. (1937). The senses of Smell and sight in Glossina swynnertoni.—Bull. ent. Res. 28, 539582.
Nash T. A. M. (1955). The fertilisation of Glossina palpalis in captivity.—Bull. ent. Res. 46, 357368.
Persoons C. J. (1967). Trapping G. pallidipes and G. palpalis fuscipes in scented traps. In International Scientific Council for Trypanosomiasis Research. Eleventh Meeting, Nairobi, 31.x–4.xi.1966.—Publ. scient. tech. Res. Commn, Org. Afr. Unity no. 100. 127132.
Phelps R. J. (1968). A falling cage for sampling tsetse flies (Glossina Diptera).—Rhod. J. agric. Res. 6, 4753.
Pilson R. D. & Leggate B. M. (1962). A diurnal and seasonal study of the feeding activity of Glossina pallidipes Aust.—Bull. ent. Res. 53, 541550.
Pilson R. D. & Pilson B. M. (1967). Behaviour studies of Glossina morsitans Westw. in the field.—Bull. ent. Res. 57, 227257.
Saunders D. S. (1962). Age determination for female tsetse flies and the age compositions of samples of Glossina pallidipes Aust., G. palpalis fuscipes Newst. and G. brevipalpis Newst.—Bull. ent. Res. 53, 579595.
Saunders D. S. (1964). The effect of site and sampling method on the size and composition of catches of tsetse flies (Glossina) and Tabanidae (Diptera).—Bull. ent. Res. 55, 483497.
Simpson J. J. (1918). Bionomics of tsetse and other parasitological notes in the Gold Coast.—Bull. ent. Res. 8, 193214.
Smith I. M. & Rennison B. D. (1961). Studies of the sampling of Glossina pallidipes Aust. I. —The numbers caught daily on cattle, in Morris traps and on a fly-roundBull. ent. Res. 52, 165182.
Swynnerton C. F. M. (1936). The tsetse flies of East Africa. A first study of their ecology, with a view to their control.—Trans. R. ent. Soc. Lond. 84, 579 pp.
Turner D. A. (1971). Olfactory perception of live hosts and carbon dioxide by the tsetse fly Glossina morsitans orientalis Vanderplank.Bull. ent. Res. 61, 7596.
Vale G. A. (1969). Mobile attractants for tsetse flies.—Arnoldia, Rhodesia 4 (33), 7 pp.
Vale G. A. (1971). Artificial refuges for tsetse flies (Glossina spp.).—Bull. ent. Res. 61, 331350.
Vale G. A. (1974). New field methods for studying the responses of tsetse flies (Diptera, Glossinidae) to hostsBull. ent. Res. 64, 199208.
Vanderplank F. L. (1944). Studies on the behaviour of the tsetse-fly (Glossina pallidipes) in the field: the attractiveness of various baits.—J. Anim. Ecol. 13, 3948.
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Bulletin of Entomological Research
  • ISSN: 0007-4853
  • EISSN: 1475-2670
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