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The quantity of blood imbibed by Hyalomma anatolicum anatolicum Koch, 1844 (Ixodoidea, Ixodidae)

Published online by Cambridge University Press:  06 April 2009

Keith R. Snow
Keith R. Snow
Affiliation:
Department of Biology, Waltham Forest Technical College, London
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Extract

1. The weight of blood ingested by all stages of H. anatolicum anatolicum has been determined and from the results a direct relationship appears to exist between the weights of replete adults and their blood content. In engorged nymphs the relationship was subject to some variations, while in fully fed larvae no such correlation was apparent, indicating the ingestion of a large proportion of extravascular fluids.

2. It was found that all instars concentrate the imbibed blood by the elimination of water. In larvae the concentration is by a factor of at least 5·25, in nymphs 3·4, in females 2·1 and in males 1·4.

3. A correlation was found between the external colour of fully engorged larvae and the quantity of blood imbibed.

I wish to thank Dr R. P. Chaudhuri for providing the original specimens of H. anatolicum anatolicum from which the culture was started, and Professor Don. R. Arthur for reading the manuscript and for his advice and assistance.

Type
Research Article
Information
Parasitology , Volume 60 , Issue 1 , February 1970 , pp. 53 - 60
Copyright
Copyright © Cambridge University Press 1970

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