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The role of the choriothete in tsetse flies

Published online by Cambridge University Press:  06 April 2009

Michael J. Roberts
Michael J. Roberts
Affiliation:
Department of Biology, University of Salford
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Extract

The anatomy of the choriothete and its relation to certain features of the tsetse uterus, such as the previously unnoticed radial, uterine ridges, are described. The results of this study suggest that the choriothete is an organ for support of the developing embryo or larva and this role is taken over by the uterine ridges when the larva reaches a sufficient size. The choriothete then appears to degenerate due to stretching of the uterus until the beginning of the next breeding cycle.

Hatching takes place with the aid of a labral egg-tooth as in some other dipteran larvae and does not require the additional presence of the choriothete.

The uterine ridges also help to form a pool of milk gland secretion around the anterior end of the second-instar larva by locking its body wall to that of the uterus.

I am grateful to Dr E. J. Popham and Col. H. W. Mulligan for reading the text and would like to thank Dr T. A. M. Nash of the Tsetse Research Laboratory, Bristol, for the provision of tsetse material. The work was carried out during tenure of a grant from the Ministry of Overseas Development.

Type
Research Article
Information
Parasitology , Volume 64 , Issue 1 , February 1972 , pp. 23 - 36
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Anderson, D. T. (1962). The embryology of Dacus tryoni (Frogg) [Diptera Trypetidae ( = Tephritidae)], the Queensland fruit-fly. Journal of Embryology and Experimental Morphology 10, 248–92.Google Scholar
Bursell, E. (1955). The polypneustic lobes of the tsetse larva (Glossina Diptera). Proceedings of the Royal Society, B 144, 275–86.Google Scholar
Bursell, E. & Jackson, C. H. N. (1957). Notes on the choriothete and milk gland of Glossina and Hippobosca (Diptera). Proceedings of the Royal Entomological Society, A 32, 30–34.CrossRefGoogle Scholar
Chapman, R. F. (1969). The Insects: Structure and Function. London: English Universities Press Ltd.Google Scholar
Hagan, H. R. (1951). Embryology of the Viviparous Insects. New York: Ronald Press Co.Google Scholar
Hartley, J. C. (1963). The cephalopharyngeal apparatus of syrphid larvae and its relationship to other Diptera. Proceedings of the Zoological Society of London 141, 261–80.CrossRefGoogle Scholar
Hoffmann, R. (1954). Zur Fortpflanzungsbiologie und zur intrauterinen Entwicklung von Glossina palpalis. Acta Tropica 11, 1–57.Google ScholarPubMed
Jackson, C. H. N. (1948). The eclosion of tsetse (Glossina) larvae (Diptera). Proceedings of the Royal Entomological Society of London A 23, 36–38.CrossRefGoogle Scholar
Minchin, E. A. (1905). Report on the anatomy of the tsetse-fly (Glossina palpalis). Proceedings of the Royal Society B 76, 531–47.Google Scholar
Pollock, J. (1970). Sperm transfer by spermatophores in Glossina austeni Newstead. Nature, London 225, 1063–4.CrossRefGoogle ScholarPubMed
Roberts, M. J. (1971). The functional anatomy of the head in the larva of the tsetse fly, Glossina austeni Newstead (Diptera, Glossinidae). Entomologist 104, 190–203.Google Scholar
Roberts, M. J. (1972). The control of fertilization in tsetse flies. Annals of Tropical Medicine and Parasitology (in press).Google Scholar
Roubaud, E. (1909). La Glossina palpalis. Thesis no. 1344, Paris University.Google Scholar
Saunders, D. S. (1970). Reproduction of Glossina. In Mulligan, H. W. (Ed.), The African Trypanosomiases. London: George Allen and Unwin.Google Scholar