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Digestion in Chrysops silacea Aust. (Diptera, Tabanidae)

Published online by Cambridge University Press:  06 April 2009

V. B. Wigglesworth
Affiliation:
From the Department of Entomology, London School of Hygiene and Tropical Medicine.

Extract

The histological changes in the gut of Chrysops silacea during the digestion of blood are the same as those described by Cragg in Tabanus.

Digestive enzymes are confined to the posterior half of the mid-gut. They comprise an active invertase, a weak amylase and an active tryptase and peptidase. These results are compared with those in Glossina and Calliphora.

The functions of the crop are discussed.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1931

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References

Austen, E. E. (1909). African Blood-Sucking Flies. London: British Museum.Google Scholar
Connal, A. and S. (1922). The development of Loa loa (Guyot) in Chrysops silacea Austen, and in Chrysops dimidiata van der Wulp. Trans. Roy. Soc. Trop. Med. Hyg. 16, 6489.CrossRefGoogle Scholar
Cornwall, J. W. and Patton, W. S. (1914). Some observations on the salivary secretion of the commoner blood-sucking insects and ticks. Ind. J. Med. Res. 2, 569596.Google Scholar
Cragg, F. W. (1920). Secretion and epithelial regeneration in the mid-intestine of Tabanus. Ind. J. Med. Res. 7, 648663.Google Scholar
Knab, F. (1909). The rôle of air in the ecdysis of insects. Proc. Ent. Soc. Washington, 11, 6873.Google Scholar
Knab, F. (1911). Ecdysis in the Diptera. Proc. Ent. Soc. Washington 13, 3242.Google Scholar
Leiper, R. T. (1913). London School of Tropical Medicine. Reports to the Colonial Office. Report of the Helminthologist for the half-year ending 30th April, 1913.Google Scholar
Lester, H. M. O. and Lloyd, Ll. (1928). Notes on the process of digestion in tsetse-flies. Bull. Ent. Res. 19, 3960.CrossRefGoogle Scholar
MacGregor, M. E. (1930). The artificial feeding of mosquitoes by a new method which demonstrates certain functions of the diverticula. Trans. Roy. Soc. Trop. Med. Hyg. 23, 329331.Google Scholar
Mayne, B. (1929). The nature of the “black spores” associated with the malaria parasite in the mosquito and their relationship to the tracheal system. Ind. Journ. Med. Res. 17, 109134.Google Scholar
Wigglesworth, V. B. (1927). Digestion in the cockroach. II. The digestion of carbohydrates. Biochem. J. 21, 797811.CrossRefGoogle Scholar
Wigglesworth, V. B. (1928). Digestion in the cockroach. III. The digestion of proteins and fats. Biochem. J. 22, 150161.CrossRefGoogle Scholar
Wigglesworth, V. B. (1929). Digestion in the tsetse-fly: a study of structure and function. Parasitology, 21, 288321.CrossRefGoogle Scholar
Wigglesworth, W. R. (1930). The formation of the peritrophic membrane in insects, with special reference to the larvae of the mosquitoes. Quart. J. Micr. Sci. 73, 593616.Google Scholar
Wright, W. R. (1924). On the function of the oesophageal diverticula in the adult female mosquito. Ann. Trop. Med. Parasit. 18, 7782.CrossRefGoogle Scholar