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Studies on Onchocerca cervicalis Railliet and Henry 1910: IV. Behaviour of the vector Culicoides nubeculosus in relation to the transmission of Onchocerca cervicalis

Published online by Cambridge University Press:  05 June 2009

Philip S. Mellor
Philip S. Mellor
Affiliation:
Wiches Farm Field Station, London School of Hygiene and Tropical Medicine, St. Alberts, Herts
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Abstract

Culicoides nubeculosus, the vector of Onchocerca cervicalis, was found to have two daily peaks of activity when attacking horses in South Hertfordshire. The evening peak occurred just before sunset and was 2–2.5 times as great as the morning peak. Most of the attacking midges (85 %) landed on the ventral mid-line of the horse in an area stretching from the front legs to the sheath or mammae. The attractiveness of the ventral surface of the host was found to be related to illumination and to the arrangement of the host's body hair. 42.1 % of the C. nubeculosus landing on the host were successful in obtaining a blood meal.

Type
Research Article
Information
Journal of Helminthology , Volume 48 , Issue 4 , December 1974 , pp. 283 - 288
Copyright
Copyright © Cambridge University Press 1974

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